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38624897125 = 53308999177
BaseRepresentation
bin100011111110001110…
…010010100001100101
310200200211120001222101
4203332032102201211
51113100433202000
625424413332101
72535106131343
oct437616224145
9120624501871
1038624897125
1115420824991
12759b497031
133847210219
141c25ada993
151010e0de6a
hex8fe392865

38624897125 has 8 divisors (see below), whose sum is σ = 48203871768. Its totient is φ = 30899917600.

The previous prime is 38624897123. The next prime is 38624897149. The reversal of 38624897125 is 52179842683.

38624897125 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 7144929 + 38617752196 = 2673^2 + 196514^2 .

It is not a de Polignac number, because 38624897125 - 21 = 38624897123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38624897123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154499464 + ... + 154499713.

It is an arithmetic number, because the mean of its divisors is an integer number (6025483971).

Almost surely, 238624897125 is an apocalyptic number.

It is an amenable number.

38624897125 is a deficient number, since it is larger than the sum of its proper divisors (9578974643).

38624897125 is an equidigital number, since it uses as much as digits as its factorization.

38624897125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308999192 (or 308999182 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The spelling of 38624897125 in words is "thirty-eight billion, six hundred twenty-four million, eight hundred ninety-seven thousand, one hundred twenty-five".

Divisors: 1 5 25 125 308999177 1544995885 7724979425 38624897125