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679011232961 = 171391543186229
BaseRepresentation
bin10011110000110000011…
…10010010110011000001
32101220122110102120002202
421320120032102303001
542111103333423321
61235533343122545
7100025350151615
oct11703016226301
92356573376082
10679011232961
11241a70159336
12ab71b5a3455
134c051c88c69
1424c15997345
15129e162870b
hex9e18392cc1

679011232961 has 16 divisors (see below), whose sum is σ = 724598582400. Its totient is φ = 634057175808.

The previous prime is 679011232951. The next prime is 679011232967. The reversal of 679011232961 is 169232110976.

It is a cyclic number.

It is not a de Polignac number, because 679011232961 - 214 = 679011216577 is a prime.

It is a super-2 number, since 2×6790112329612 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (679011232967) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3552995 + ... + 3739223.

It is an arithmetic number, because the mean of its divisors is an integer number (45287411400).

Almost surely, 2679011232961 is an apocalyptic number.

It is an amenable number.

679011232961 is a deficient number, since it is larger than the sum of its proper divisors (45587349439).

679011232961 is a wasteful number, since it uses less digits than its factorization.

679011232961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187928.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 679011232961 in words is "six hundred seventy-nine billion, eleven million, two hundred thirty-two thousand, nine hundred sixty-one".

Divisors: 1 17 139 1543 2363 26231 186229 214477 3165893 3646109 25885831 287351347 440059127 4884972899 39941837233 679011232961