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68927446925 = 522757097877
BaseRepresentation
bin100000000110001100…
…1010101111110001101
320120220200011002122122
41000030121111332031
52112130411300200
651355334222325
74660041426521
oct1001431257615
9216820132578
1068927446925
1127260824077
12114377b49a5
13666618686c
14349c3bdd81
151bd639c385
hex100c655f8d

68927446925 has 6 divisors (see below), whose sum is σ = 85470034218. Its totient is φ = 55141957520.

The previous prime is 68927446909. The next prime is 68927446979. The reversal of 68927446925 is 52964472986.

It can be written as a sum of positive squares in 3 ways, for example, as 4336749316 + 64590697609 = 65854^2 + 254147^2 .

It is not a de Polignac number, because 68927446925 - 24 = 68927446909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1378548914 + ... + 1378548963.

It is an arithmetic number, because the mean of its divisors is an integer number (14245005703).

Almost surely, 268927446925 is an apocalyptic number.

It is an amenable number.

68927446925 is a deficient number, since it is larger than the sum of its proper divisors (16542587293).

68927446925 is a wasteful number, since it uses less digits than its factorization.

68927446925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757097887 (or 2757097882 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 62.

The spelling of 68927446925 in words is "sixty-eight billion, nine hundred twenty-seven million, four hundred forty-six thousand, nine hundred twenty-five".

Divisors: 1 5 25 2757097877 13785489385 68927446925