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68907525 = 352918767
BaseRepresentation
bin1000001101101…
…11001000000101
311210122212100120
410012313020011
5120120020100
610500532153
71464463401
oct406671005
9153585316
1068907525
1135995275
121b0b1059
13113784ab
14921a101
1560b20a0
hex41b7205

68907525 has 12 divisors (see below), whose sum is σ = 113927232. Its totient is φ = 36750640.

The previous prime is 68907497. The next prime is 68907551. The reversal of 68907525 is 52570986.

It is not a de Polignac number, because 68907525 - 25 = 68907493 is a prime.

It is a congruent 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, 459309 + ... + 459458.

It is an arithmetic number, because the mean of its divisors is an integer number (9493936).

Almost surely, 268907525 is an apocalyptic number.

It is an amenable number.

68907525 is a deficient number, since it is larger than the sum of its proper divisors (45019707).

68907525 is a wasteful number, since it uses less digits than its factorization.

68907525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918780 (or 918775 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 68907525 is about 8301.0556557585. The cubic root of 68907525 is about 409.9732780522.

The spelling of 68907525 in words is "sixty-eight million, nine hundred seven thousand, five hundred twenty-five".

Divisors: 1 3 5 15 25 75 918767 2756301 4593835 13781505 22969175 68907525