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68245524 = 2233631903
BaseRepresentation
bin1000001000101…
…01100000010100
311202102020021000
410010111200110
5114432324044
610434423300
71456035354
oct404254024
9152366230
1068245524
1135582966
121aa31b30
13111a6089
1490c6b64
155ed0d69
hex4115814

68245524 has 24 divisors (see below), whose sum is σ = 176933120. Its totient is φ = 22748472.

The previous prime is 68245523. The next prime is 68245537. The reversal of 68245524 is 42554286.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68245523) 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, 315844 + ... + 316059.

Almost surely, 268245524 is an apocalyptic number.

It is an amenable number.

68245524 is an abundant number, since it is smaller than the sum of its proper divisors (108687596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68245524 is a wasteful number, since it uses less digits than its factorization.

68245524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631916 (or 631908 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 68245524 is about 8261.0849166438. The cubic root of 68245524 is about 408.6561673344.

The spelling of 68245524 in words is "sixty-eight million, two hundred forty-five thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 631903 1263806 1895709 2527612 3791418 5687127 7582836 11374254 17061381 22748508 34122762 68245524