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38906025 = 352518747
BaseRepresentation
bin1001010001101…
…0100010101001
32201012122000220
42110122202221
534424443100
63505520253
7651460434
oct224324251
981178026
1038906025
111aa63744
1211043089
1380a2922
14524a81b
153637aa0
hex251a8a9

38906025 has 12 divisors (see below), whose sum is σ = 64324752. Its totient is φ = 20749840.

The previous prime is 38906011. The next prime is 38906033. The reversal of 38906025 is 52060983.

It is a happy number.

It is not a de Polignac number, because 38906025 - 24 = 38906009 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259299 + ... + 259448.

It is an arithmetic number, because the mean of its divisors is an integer number (5360396).

Almost surely, 238906025 is an apocalyptic number.

It is an amenable number.

38906025 is a deficient number, since it is larger than the sum of its proper divisors (25418727).

38906025 is a wasteful number, since it uses less digits than its factorization.

38906025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518760 (or 518755 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 38906025 is about 6237.4694388029. The cubic root of 38906025 is about 338.8485413858.

The spelling of 38906025 in words is "thirty-eight million, nine hundred six thousand, twenty-five".

Divisors: 1 3 5 15 25 75 518747 1556241 2593735 7781205 12968675 38906025