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272349340641 = 3272248512
BaseRepresentation
bin1111110110100101001…
…0010010001111100001
3222000222111022222212100
43331221102102033201
513430232412400031
6325040543321013
725451033125200
oct3755122221741
9860874288770
10272349340641
11a5559114704
12449492b0169
131c8b43c5c01
14d278b2b237
15713ee50de6
hex3f694923e1

272349340641 has 27 divisors (see below), whose sum is σ = 457639416273. Its totient is φ = 155621932200.

The previous prime is 272349340603. The next prime is 272349340661. The reversal of 272349340641 is 146043943272.

The square root of 272349340641 is 521871.

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

272349340641 is a `hidden beast` number, since 2 + 7 + 234 + 9 + 3 + 406 + 4 + 1 = 666.

It is not a de Polignac number, because 272349340641 - 27 = 272349340513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (272349340661) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10946866 + ... + 10971716.

Almost surely, 2272349340641 is an apocalyptic number.

272349340641 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

272349340641 is the 521871-st square number.

272349340641 is the 260936-th centered octagonal number.

It is an amenable number.

272349340641 is a deficient number, since it is larger than the sum of its proper divisors (185290075632).

272349340641 is an frugal number, since it uses more digits than its factorization.

272349340641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49722 (or 24861 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 272349340641 in words is "two hundred seventy-two billion, three hundred forty-nine million, three hundred forty thousand, six hundred forty-one".

Divisors: 1 3 7 9 21 49 63 147 441 24851 74553 173957 223659 521871 1217699 1565613 3653097 10959291 617572201 1852716603 4323005407 5558149809 12969016221 30261037849 38907048663 90783113547 272349340641