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33874680681 = 332415205883
BaseRepresentation
bin11111100011000101…
…101001101101101001
310020102210012002001000
4133203011221231221
51023333404240211
623321203545213
72306306014662
oct374305515551
9106383162030
1033874680681
1113403412a76
12669468b209
13326b04966a
1418d4c9a369
15d33d97656
hex7e3169b69

33874680681 has 16 divisors (see below), whose sum is σ = 50392957120. Its totient is φ = 22489410240.

The previous prime is 33874680677. The next prime is 33874680703. The reversal of 33874680681 is 18608647833.

It is not a de Polignac number, because 33874680681 - 22 = 33874680677 is a prime.

It is a super-2 number, since 2×338746806812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33874680661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2596435 + ... + 2609448.

It is an arithmetic number, because the mean of its divisors is an integer number (3149559820).

Almost surely, 233874680681 is an apocalyptic number.

It is an amenable number.

33874680681 is a deficient number, since it is larger than the sum of its proper divisors (16518276439).

33874680681 is a wasteful number, since it uses less digits than its factorization.

33874680681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5206133 (or 5206127 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 33874680681 in words is "thirty-three billion, eight hundred seventy-four million, six hundred eighty thousand, six hundred eighty-one".

Divisors: 1 3 9 27 241 723 2169 6507 5205883 15617649 46852947 140558841 1254617803 3763853409 11291560227 33874680681