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120725671936 = 212612892
BaseRepresentation
bin111000001101111001…
…1111001000000000000
3102112121120122120020211
41300123303321000000
53434221233000221
6131243254043504
711502460165012
oct1603363710000
9375546576224
10120725671936
11472215491a1
121b492949594
13b4cc64474c
145bb38841b2
153218a496e1
hex1c1bcf9000

120725671936 has 117 divisors (see below), whose sum is σ = 248233276083. Its totient is φ = 58706165760.

The previous prime is 120725671933. The next prime is 120725671939. The reversal of 120725671936 is 639176527021.

The square root of 120725671936 is 347456.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (120725671933) and next prime (120725671939).

It can be written as a sum of positive squares in 4 ways, for example, as 78256705536 + 42468966400 = 279744^2 + 206080^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120725671936.

It is not an unprimeable number, because it can be changed into a prime (120725671933) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1356468180 + ... + 1356468268.

Almost surely, 2120725671936 is an apocalyptic number.

120725671936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

120725671936 is the 347456-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120725671936

120725671936 is an abundant number, since it is smaller than the sum of its proper divisors (127507604147).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120725671936 is an frugal number, since it uses more digits than its factorization.

120725671936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 49.

Multiplying 120725671936 by its sum of digits (49), we get a square (5915557924864 = 24321922).

The spelling of 120725671936 in words is "one hundred twenty billion, seven hundred twenty-five million, six hundred seventy-one thousand, nine hundred thirty-six".

Divisors: 1 2 4 8 16 32 61 64 89 122 128 178 244 256 356 488 512 712 976 1024 1424 1952 2048 2848 3721 3904 4096 5429 5696 7442 7808 7921 10858 11392 14884 15616 15842 21716 22784 29768 31232 31684 43432 45568 59536 62464 63368 86864 91136 119072 124928 126736 173728 182272 238144 249856 253472 331169 347456 364544 476288 483181 506944 662338 694912 952576 966362 1013888 1324676 1389824 1905152 1932724 2027776 2649352 2779648 3810304 3865448 4055552 5298704 5559296 7620608 7730896 8111104 10597408 11118592 15241216 15461792 16222208 21194816 22237184 29474041 30923584 32444416 42389632 58948082 61847168 84779264 117896164 123694336 169558528 235792328 247388672 339117056 471584656 494777344 678234112 943169312 989554688 1356468224 1886338624 1979109376 3772677248 7545354496 15090708992 30181417984 60362835968 120725671936