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12542752890031 = 713197254339439
BaseRepresentation
bin1011011010000101011001…
…0101001001110010101111
31122102002001000101122201111
42312201112111021302233
53121000024214440111
642402021112052451
72433120052321210
oct266412625116257
948362030348644
1012542752890031
113aa6396021371
1214a6a52694127
136cca13034310
14315102c4d407
1516b3ec06ba21
hexb6856549caf

12542752890031 has 16 divisors (see below), whose sum is σ = 16249720345600. Its totient is φ = 9401623911648.

The previous prime is 12542752890029. The next prime is 12542752890037. The reversal of 12542752890031 is 13009825724521.

It is a cyclic number.

It is not a de Polignac number, because 12542752890031 - 21 = 12542752890029 is a prime.

It is a super-2 number, since 2×125427528900312 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542752890037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3627167991 + ... + 3627171448.

It is an arithmetic number, because the mean of its divisors is an integer number (1015607521600).

Almost surely, 212542752890031 is an apocalyptic number.

12542752890031 is a deficient number, since it is larger than the sum of its proper divisors (3706967455569).

12542752890031 is a wasteful number, since it uses less digits than its factorization.

12542752890031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7254339478.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 12542752890031 in words is "twelve trillion, five hundred forty-two billion, seven hundred fifty-two million, eight hundred ninety thousand, thirty-one".

Divisors: 1 7 13 19 91 133 247 1729 7254339439 50780376073 94306412707 137832449341 660144888949 964827145387 1791821841433 12542752890031