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20312652506131 = 97232978988659
BaseRepresentation
bin1001001111001011010000…
…11011111110010000010011
32122220212111200022102220001
410213211220123332100103
510130300303020144011
6111111300450230431
74164353315333236
oct447455033762023
978825450272801
1020312652506131
116521602876477
12234088a285417
13b446234c7a5b
145031cd91141d
152535a32057c1
hex1279686fe413

20312652506131 has 8 divisors (see below), whose sum is σ = 20522944466640. Its totient is φ = 20102378569728.

The previous prime is 20312652506129. The next prime is 20312652506137. The reversal of 20312652506131 is 13160525621302.

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

It is a cyclic number.

It is not a de Polignac number, because 20312652506131 - 21 = 20312652506129 is a prime.

It is a super-2 number, since 2×203126525061312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20312652506137) 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 7 ways as a sum of consecutive naturals, for example, 2234521 + ... + 6754138.

It is an arithmetic number, because the mean of its divisors is an integer number (2565368058330).

Almost surely, 220312652506131 is an apocalyptic number.

20312652506131 is a deficient number, since it is larger than the sum of its proper divisors (210291960509).

20312652506131 is an equidigital number, since it uses as much as digits as its factorization.

20312652506131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9012053.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 20312652506131 in words is "twenty trillion, three hundred twelve billion, six hundred fifty-two million, five hundred six thousand, one hundred thirty-one".

Divisors: 1 97 23297 2259809 8988659 871899923 209408788723 20312652506131