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72634807886 = 2172136317879
BaseRepresentation
bin100001110100101011…
…1110011011001001110
320221111001012112210212
41003221113303121032
52142224002323021
653211252002422
75150646452204
oct1035127633116
9227431175725
1072634807886
1128893501253
12120b1300412
136b07286a84
143730919074
151d51ab985b
hex10e95f364e

72634807886 has 8 divisors (see below), whose sum is σ = 115361165520. Its totient is φ = 34181086048.

The previous prime is 72634807879. The next prime is 72634807939. The reversal of 72634807886 is 68870843627.

It is a happy number.

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

It is a super-2 number, since 2×726348078862 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068158906 + ... + 1068158973.

It is an arithmetic number, because the mean of its divisors is an integer number (14420145690).

Almost surely, 272634807886 is an apocalyptic number.

72634807886 is a deficient number, since it is larger than the sum of its proper divisors (42726357634).

72634807886 is a wasteful number, since it uses less digits than its factorization.

72634807886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136317898.

The product of its (nonzero) digits is 21676032, while the sum is 59.

The spelling of 72634807886 in words is "seventy-two billion, six hundred thirty-four million, eight hundred seven thousand, eight hundred eighty-six".

Divisors: 1 2 17 34 2136317879 4272635758 36317403943 72634807886