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38397225 = 352511963
BaseRepresentation
bin1001001001111…
…0010100101001
32200020210002110
42102132110221
534312202400
63450552533
7644241156
oct222362451
980223073
1038397225
111a746449
1210a38749
137c55169
14515722d
153586e50
hex249e529

38397225 has 12 divisors (see below), whose sum is σ = 63483536. Its totient is φ = 20478480.

The previous prime is 38397217. The next prime is 38397241. The reversal of 38397225 is 52279383.

It is not a de Polignac number, because 38397225 - 23 = 38397217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255907 + ... + 256056.

Almost surely, 238397225 is an apocalyptic number.

It is an amenable number.

38397225 is a deficient number, since it is larger than the sum of its proper divisors (25086311).

38397225 is a wasteful number, since it uses less digits than its factorization.

38397225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511976 (or 511971 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 38397225 is about 6196.5494430368. The cubic root of 38397225 is about 337.3649390998.

The spelling of 38397225 in words is "thirty-eight million, three hundred ninety-seven thousand, two hundred twenty-five".

Divisors: 1 3 5 15 25 75 511963 1535889 2559815 7679445 12799075 38397225