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120271968 = 25322367271
BaseRepresentation
bin1110010101100…
…11010001100000
322101022110010100
413022303101200
5221242200333
615533502400
72660203065
oct712632140
9271273110
10120271968
1161988123
1234341a00
131bbc095b
1411d8ac6c
15a85b213
hex72b3460

120271968 has 144 divisors (see below), whose sum is σ = 363557376. Its totient is φ = 37635840.

The previous prime is 120271937. The next prime is 120271969. The reversal of 120271968 is 869172021.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120271969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443673 + ... + 443943.

It is an arithmetic number, because the mean of its divisors is an integer number (2524704).

Almost surely, 2120271968 is an apocalyptic number.

120271968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120271968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181778688).

120271968 is an abundant number, since it is smaller than the sum of its proper divisors (243285408).

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

120271968 is a wasteful number, since it uses less digits than its factorization.

120271968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 120271968 is about 10966.8577085690. The cubic root of 120271968 is about 493.6147619148.

The spelling of 120271968 in words is "one hundred twenty million, two hundred seventy-one thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 23 24 32 36 46 48 67 69 72 92 96 134 138 144 184 201 207 268 271 276 288 368 402 414 536 542 552 603 736 804 813 828 1072 1084 1104 1206 1541 1608 1626 1656 2144 2168 2208 2412 2439 3082 3216 3252 3312 4336 4623 4824 4878 6164 6233 6432 6504 6624 8672 9246 9648 9756 12328 12466 13008 13869 18157 18492 18699 19296 19512 24656 24932 26016 27738 36314 36984 37398 39024 49312 49864 54471 55476 56097 72628 73968 74796 78048 99728 108942 110952 112194 145256 147936 149592 163413 199456 217884 221904 224388 290512 299184 326826 417611 435768 443808 448776 581024 598368 653652 835222 871536 897552 1252833 1307304 1670444 1743072 1795104 2505666 2614608 3340888 3758499 5011332 5229216 6681776 7516998 10022664 13363552 15033996 20045328 30067992 40090656 60135984 120271968