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38801657 = 224317299
BaseRepresentation
bin1001010000000…
…1000011111001
32201000022212102
42110001003321
534413123112
63503353145
7650544236
oct224010371
981008772
1038801657
111a9a2294
1210bb27b5
13806727b
14522078d
153616bc2
hex25010f9

38801657 has 4 divisors (see below), whose sum is σ = 38821200. Its totient is φ = 38782116.

The previous prime is 38801647. The next prime is 38801663. The reversal of 38801657 is 75610883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38801657 - 216 = 38736121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38801657.

It is not an unprimeable number, because it can be changed into a prime (38801627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6407 + ... + 10892.

It is an arithmetic number, because the mean of its divisors is an integer number (9705300).

Almost surely, 238801657 is an apocalyptic number.

It is an amenable number.

38801657 is a deficient number, since it is larger than the sum of its proper divisors (19543).

38801657 is a wasteful number, since it uses less digits than its factorization.

38801657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19542.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 38801657 is about 6229.0976071980. The cubic root of 38801657 is about 338.5452754630.

The spelling of 38801657 in words is "thirty-eight million, eight hundred one thousand, six hundred fifty-seven".

Divisors: 1 2243 17299 38801657