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68264917 = 761159871
BaseRepresentation
bin1000001000110…
…10001111010101
311202110012212021
410010122033111
5114433434132
610435053141
71456146040
oct404321725
9152405767
1068264917
1135596496
121aa411b1
13111b1b56
1490cdc57
155ed6997
hex411a3d5

68264917 has 8 divisors (see below), whose sum is σ = 79296512. Its totient is φ = 57553200.

The previous prime is 68264909. The next prime is 68264921. The reversal of 68264917 is 71946286.

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 68264917 - 23 = 68264909 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 (68264117) 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, 79509 + ... + 80362.

It is an arithmetic number, because the mean of its divisors is an integer number (9912064).

Almost surely, 268264917 is an apocalyptic number.

It is an amenable number.

68264917 is a deficient number, since it is larger than the sum of its proper divisors (11031595).

68264917 is a wasteful number, since it uses less digits than its factorization.

68264917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159939.

The product of its digits is 145152, while the sum is 43.

The square root of 68264917 is about 8262.2585895141. The cubic root of 68264917 is about 408.6948722830.

The spelling of 68264917 in words is "sixty-eight million, two hundred sixty-four thousand, nine hundred seventeen".

Divisors: 1 7 61 427 159871 1119097 9752131 68264917