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68625903 = 3137166973
BaseRepresentation
bin1000001011100…
…10010111101111
311210010120001010
410011302113233
5120032012103
610450520303
71462211343
oct405622757
9153116033
1068625903
1135812725
121ab96093
13112aa258
149185623
156058903
hex41725ef

68625903 has 8 divisors (see below), whose sum is σ = 92169648. Its totient is φ = 45416384.

The previous prime is 68625901. The next prime is 68625911. The reversal of 68625903 is 30952686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68625903 - 21 = 68625901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68625901) 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, 83076 + ... + 83897.

It is an arithmetic number, because the mean of its divisors is an integer number (11521206).

Almost surely, 268625903 is an apocalyptic number.

68625903 is a deficient number, since it is larger than the sum of its proper divisors (23543745).

68625903 is a wasteful number, since it uses less digits than its factorization.

68625903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167113.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 68625903 is about 8284.0752652303. The cubic root of 68625903 is about 409.4140012412.

The spelling of 68625903 in words is "sixty-eight million, six hundred twenty-five thousand, nine hundred three".

Divisors: 1 3 137 411 166973 500919 22875301 68625903