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38877625 = 53311021
BaseRepresentation
bin1001010001001…
…1100110111001
32201011012002001
42110103212321
534423041000
63505141001
7651311563
oct224234671
981135061
1038877625
111aa44376
121102a761
138092a17
145240333
15362e46a
hex25139b9

38877625 has 8 divisors (see below), whose sum is σ = 48519432. Its totient is φ = 31102000.

The previous prime is 38877617. The next prime is 38877653. The reversal of 38877625 is 52677883.

38877625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1752976 + 37124649 = 1324^2 + 6093^2 .

It is not a de Polignac number, because 38877625 - 23 = 38877617 is a prime.

It is a super-2 number, since 2×388776252 = 3022939451281250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155386 + ... + 155635.

It is an arithmetic number, because the mean of its divisors is an integer number (6064929).

Almost surely, 238877625 is an apocalyptic number.

It is an amenable number.

38877625 is a deficient number, since it is larger than the sum of its proper divisors (9641807).

38877625 is an equidigital number, since it uses as much as digits as its factorization.

38877625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311036 (or 311026 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 38877625 is about 6235.1924589382. The cubic root of 38877625 is about 338.7660722303.

The spelling of 38877625 in words is "thirty-eight million, eight hundred seventy-seven thousand, six hundred twenty-five".

Divisors: 1 5 25 125 311021 1555105 7775525 38877625