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12492495967 = 72961539389
BaseRepresentation
bin10111010001001110…
…00101110001011111
31012020121211112210211
423220213011301133
5201041034332332
65423341313251
7621401315020
oct135047056137
935217745724
1012492495967
115330763136
122507865827
1312411c0163
148671bcc47
154d1b05447
hex2e89c5c5f

12492495967 has 8 divisors (see below), whose sum is σ = 14769453600. Its totient is φ = 10338617184.

The previous prime is 12492495901. The next prime is 12492495973. The reversal of 12492495967 is 76959429421.

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

It is a de Polignac number, because none of the positive numbers 2k-12492495967 is a prime.

It is a super-2 number, since 2×124924959672 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12492495467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30769492 + ... + 30769897.

It is an arithmetic number, because the mean of its divisors is an integer number (1846181700).

Almost surely, 212492495967 is an apocalyptic number.

12492495967 is a deficient number, since it is larger than the sum of its proper divisors (2276957633).

12492495967 is an equidigital number, since it uses as much as digits as its factorization.

12492495967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61539425.

The product of its digits is 9797760, while the sum is 58.

The spelling of 12492495967 in words is "twelve billion, four hundred ninety-two million, four hundred ninety-five thousand, nine hundred sixty-seven".

Divisors: 1 7 29 203 61539389 430775723 1784642281 12492495967