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38660680 = 2352693593
BaseRepresentation
bin1001001101111…
…0101001001000
32200202011111001
42103132221020
534344120210
63500344344
7646416232
oct223365110
980664431
1038660680
111a906383
1210b450b4
138018056
1451c5252
1535da03a
hex24dea48

38660680 has 32 divisors (see below), whose sum is σ = 87334200. Its totient is φ = 15402496.

The previous prime is 38660651. The next prime is 38660701. The reversal of 38660680 is 8606683.

It can be written as a sum of positive squares in 4 ways, for example, as 17994564 + 20666116 = 4242^2 + 4546^2 .

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, 8964 + ... + 12556.

Almost surely, 238660680 is an apocalyptic number.

It is an amenable number.

38660680 is an abundant number, since it is smaller than the sum of its proper divisors (48673520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38660680 is a wasteful number, since it uses less digits than its factorization.

38660680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3873 (or 3869 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 38660680 is about 6217.7713048970. The cubic root of 38660680 is about 338.1347688008.

It can be divided in two parts, 38660 and 680, that added together give a triangular number (39340 = T280).

The spelling of 38660680 in words is "thirty-eight million, six hundred sixty thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 269 538 1076 1345 2152 2690 3593 5380 7186 10760 14372 17965 28744 35930 71860 143720 966517 1933034 3866068 4832585 7732136 9665170 19330340 38660680