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12762405031 = 43296800117
BaseRepresentation
bin10111110001011001…
…01101100010100111
31012221102201100102211
423320230231202213
5202114133430111
65510222344251
7631156436635
oct137054554247
935842640384
1012762405031
11545a054882
12258212b087
1312850b376c
14890d9c355
154ea66d521
hex2f8b2d8a7

12762405031 has 4 divisors (see below), whose sum is σ = 13059205192. Its totient is φ = 12465604872.

The previous prime is 12762405023. The next prime is 12762405037. The reversal of 12762405031 is 13050426721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13050426721 = 16697819309.

It is a cyclic number.

It is not a de Polignac number, because 12762405031 - 23 = 12762405023 is a prime.

It is a super-2 number, since 2×127624050312 (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 = 12762404984 and 12762405002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12762405037) 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 3 ways as a sum of consecutive naturals, for example, 148400016 + ... + 148400101.

It is an arithmetic number, because the mean of its divisors is an integer number (3264801298).

Almost surely, 212762405031 is an apocalyptic number.

12762405031 is a deficient number, since it is larger than the sum of its proper divisors (296800161).

12762405031 is an equidigital number, since it uses as much as digits as its factorization.

12762405031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296800160.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 12762405031 in words is "twelve billion, seven hundred sixty-two million, four hundred five thousand, thirty-one".

Divisors: 1 43 296800117 12762405031