Base | Representation |
---|---|
bin | 1001001111001011010000… |
… | …11011111110010000010011 |
3 | 2122220212111200022102220001 |
4 | 10213211220123332100103 |
5 | 10130300303020144011 |
6 | 111111300450230431 |
7 | 4164353315333236 |
oct | 447455033762023 |
9 | 78825450272801 |
10 | 20312652506131 |
11 | 6521602876477 |
12 | 234088a285417 |
13 | b446234c7a5b |
14 | 5031cd91141d |
15 | 2535a32057c1 |
hex | 1279686fe413 |
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".
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