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31404338258 = 2127401308327
BaseRepresentation
bin11101001111110110…
…000010110001010010
310000001121210200022012
4131033312002301102
51003304002311013
622232115542522
72161141320326
oct351766026122
9100047720265
1031404338258
1112355a26167
1261052baa42
132c66302397
14173cb69986
15c3c0791a8
hex74fd82c52

31404338258 has 16 divisors (see below), whose sum is σ = 47595976704. Its totient is φ = 15539630400.

The previous prime is 31404338227. The next prime is 31404338269. The reversal of 31404338258 is 85283340413.

It is a super-2 number, since 2×314043382582 (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 7 ways as a sum of consecutive naturals, for example, 52310 + ... + 256017.

It is an arithmetic number, because the mean of its divisors is an integer number (2974748544).

Almost surely, 231404338258 is an apocalyptic number.

31404338258 is a deficient number, since it is larger than the sum of its proper divisors (16191638446).

31404338258 is a wasteful number, since it uses less digits than its factorization.

31404338258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308857.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 31404338258 in words is "thirty-one billion, four hundred four million, three hundred thirty-eight thousand, two hundred fifty-eight".

Divisors: 1 2 127 254 401 802 50927 101854 308327 616654 39157529 78315058 123639127 247278254 15702169129 31404338258