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680038004 = 22617935279
BaseRepresentation
bin101000100010001…
…000111001110100
31202101121111202202
4220202020321310
52343042204004
6151251324032
722565141042
oct5042107164
91671544682
10680038004
11319955688
1216b8b0618
13aab70369
146645d392
153ea7cb1e
hex28888e74

680038004 has 24 divisors (see below), whose sum is σ = 1224921600. Its totient is φ = 330202080.

The previous prime is 680038003. The next prime is 680038039. The reversal of 680038004 is 400830086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680038001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1637 + ... + 36915.

It is an arithmetic number, because the mean of its divisors is an integer number (51038400).

Almost surely, 2680038004 is an apocalyptic number.

It is an amenable number.

680038004 is a deficient number, since it is larger than the sum of its proper divisors (544883596).

680038004 is a wasteful number, since it uses less digits than its factorization.

680038004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35423 (or 35421 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 680038004 is about 26077.5383040654. The cubic root of 680038004 is about 879.3823161965.

The spelling of 680038004 in words is "six hundred eighty million, thirty-eight thousand, four".

Divisors: 1 2 4 61 79 122 158 244 316 4819 9638 19276 35279 70558 141116 2152019 2787041 4304038 5574082 8608076 11148164 170009501 340019002 680038004