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30181417984 = 210612892
BaseRepresentation
bin11100000110111100…
…111110010000000000
32212220101122220001201
4130012330332100000
5443302420333414
621510512310544
72115631551154
oct340674762000
985811586051
1030181417984
1111888695053
125a23842454
132accb44513
141664591064
15bb9a12574
hex706f3e400

30181417984 has 99 divisors (see below), whose sum is σ = 62035589811. Its totient is φ = 14676541440.

The previous prime is 30181417969. The next prime is 30181417991. The reversal of 30181417984 is 48971418103.

It is a happy number.

The square root of 30181417984 is 173728.

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

It can be written as a sum of positive squares in 4 ways, for example, as 19564176384 + 10617241600 = 139872^2 + 103040^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 339117012 + ... + 339117100.

Almost surely, 230181417984 is an apocalyptic number.

30181417984 is the 173728-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30181417984

30181417984 is an abundant number, since it is smaller than the sum of its proper divisors (31854171827).

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

30181417984 is an frugal number, since it uses more digits than its factorization.

30181417984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 30181417984 in words is "thirty billion, one hundred eighty-one million, four hundred seventeen thousand, nine hundred eighty-four".

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