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693831038 = 21651921001
BaseRepresentation
bin101001010110110…
…000010101111110
31210100120021020212
4221112300111332
52410110043123
6152503112422
723123316005
oct5126602576
91710507225
10693831038
1132671658a
12174442712
13b098c514
146820dc3c
1540da4878
hex295b057e

693831038 has 8 divisors (see below), whose sum is σ = 1040859120. Its totient is φ = 346878000.

The previous prime is 693831007. The next prime is 693831071. The reversal of 693831038 is 830138396.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 693830986 and 693831004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22538 + ... + 43538.

It is an arithmetic number, because the mean of its divisors is an integer number (130107390).

Almost surely, 2693831038 is an apocalyptic number.

693831038 is a deficient number, since it is larger than the sum of its proper divisors (347028082).

693831038 is a wasteful number, since it uses less digits than its factorization.

693831038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37522.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 693831038 is about 26340.6726945232. The cubic root of 693831038 is about 885.2879941986.

The spelling of 693831038 in words is "six hundred ninety-three million, eight hundred thirty-one thousand, thirty-eight".

Divisors: 1 2 16519 21001 33038 42002 346915519 693831038