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5121708925 = 52661309937
BaseRepresentation
bin1001100010100011…
…10001001101111101
3111012221101202211011
410301101301031331
540442124141200
62204115555221
7240630543664
oct46121611575
914187352734
105121708925
1121990867a3
12bab2bbb11
136381335c8
14368303ddb
151ee9985ba
hex13147137d

5121708925 has 12 divisors (see below), whose sum is σ = 6360547636. Its totient is φ = 4091155200.

The previous prime is 5121708919. The next prime is 5121708929. The reversal of 5121708925 is 5298071215.

It can be written as a sum of positive squares in 6 ways, for example, as 2735716 + 5118973209 = 1654^2 + 71547^2 .

It is not a de Polignac number, because 5121708925 - 27 = 5121708797 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 (5121708929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138444 + ... + 171493.

Almost surely, 25121708925 is an apocalyptic number.

It is an amenable number.

5121708925 is a deficient number, since it is larger than the sum of its proper divisors (1238838711).

5121708925 is a wasteful number, since it uses less digits than its factorization.

5121708925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310608 (or 310603 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 5121708925 is about 71566.1157601836. The cubic root of 5121708925 is about 1723.7394894084.

The spelling of 5121708925 in words is "five billion, one hundred twenty-one million, seven hundred eight thousand, nine hundred twenty-five".

Divisors: 1 5 25 661 3305 16525 309937 1549685 7748425 204868357 1024341785 5121708925