Search a number
-
+
31047304395 = 35371091992579
BaseRepresentation
bin11100111010100100…
…000100010011001011
32222010201222110220210
4130322210010103023
51002041102220040
622132443252203
72146244506302
oct347244042313
988121873823
1031047304395
1112192437358
12602581a063
132c0a355743
14170758b439
15c1aa51480
hex73a9044cb

31047304395 has 64 divisors (see below), whose sum is σ = 51765120000. Its totient is φ = 15876850176.

The previous prime is 31047304373. The next prime is 31047304427. The reversal of 31047304395 is 59340374013.

It is not a de Polignac number, because 31047304395 - 25 = 31047304363 is a prime.

It is a super-2 number, since 2×310473043952 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12037216 + ... + 12039794.

It is an arithmetic number, because the mean of its divisors is an integer number (808830000).

Almost surely, 231047304395 is an apocalyptic number.

31047304395 is a deficient number, since it is larger than the sum of its proper divisors (20717815605).

31047304395 is a wasteful number, since it uses less digits than its factorization.

31047304395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932.

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 31047304395 in words is "thirty-one billion, forty-seven million, three hundred four thousand, three hundred ninety-five".

Divisors: 1 3 5 15 37 109 111 185 199 327 545 555 597 995 1635 2579 2985 4033 7363 7737 12099 12895 20165 21691 22089 36815 38685 60495 65073 95423 108455 110445 281111 286269 325365 477115 513221 802567 843333 1405555 1431345 1539663 2407701 2566105 4012835 4216665 7698315 10401107 12038505 18989177 31203321 52005535 55941089 56967531 94945885 156016605 167823267 279705445 284837655 839116335 2069820293 6209460879 10349101465 31047304395