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68134525 = 527873463
BaseRepresentation
bin1000000111110…
…10011001111101
311202012120222221
410003322121331
5114420301100
610432205341
71455063634
oct403723175
9152176887
1068134525
1135507528
121a999851
13111676b4
14909851b
155ead01a
hex40fa67d

68134525 has 12 divisors (see below), whose sum is σ = 84618592. Its totient is φ = 54422640.

The previous prime is 68134523. The next prime is 68134529. The reversal of 68134525 is 52543186.

It is not a de Polignac number, because 68134525 - 21 = 68134523 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 (68134523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17944 + ... + 21406.

Almost surely, 268134525 is an apocalyptic number.

It is an amenable number.

68134525 is a deficient number, since it is larger than the sum of its proper divisors (16484067).

68134525 is a wasteful number, since it uses less digits than its factorization.

68134525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4260 (or 4255 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 68134525 is about 8254.3639973047. The cubic root of 68134525 is about 408.4344920367.

The spelling of 68134525 in words is "sixty-eight million, one hundred thirty-four thousand, five hundred twenty-five".

Divisors: 1 5 25 787 3463 3935 17315 19675 86575 2725381 13626905 68134525