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12427951031 = 172343739187
BaseRepresentation
bin10111001001100001…
…10111101110110111
31012002010101022210122
423210300313232313
5200423023413111
65413114042155
7616655561246
oct134460675667
935063338718
1012427951031
1152a8288611
1224aa11935b
131230a115a2
1485c7ba95d
154cb105cdb
hex2e4c37bb7

12427951031 has 16 divisors (see below), whose sum is σ = 14050485504. Its totient is φ = 10928125824.

The previous prime is 12427951009. The next prime is 12427951033. The reversal of 12427951031 is 13015972421.

It is a cyclic number.

It is not a de Polignac number, because 12427951031 - 214 = 12427934647 is a prime.

It is a super-2 number, since 2×124279510312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12427950982 and 12427951000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12427951033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352781 + ... + 386406.

It is an arithmetic number, because the mean of its divisors is an integer number (878155344).

Almost surely, 212427951031 is an apocalyptic number.

12427951031 is a deficient number, since it is larger than the sum of its proper divisors (1622534473).

12427951031 is a wasteful number, since it uses less digits than its factorization.

12427951031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739270.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 12427951031 in words is "twelve billion, four hundred twenty-seven million, nine hundred fifty-one thousand, thirty-one".

Divisors: 1 17 23 43 391 731 989 16813 739187 12566179 17001301 31785041 289022117 540345697 731055943 12427951031