Base | Representation |
---|---|
bin | 10010111010100101… |
… | …000100101001110111 |
3 | 1221102110010111201120 |
4 | 102322211010221313 |
5 | 313043344243001 |
6 | 13155204555023 |
7 | 1316206265403 |
oct | 227245045167 |
9 | 57373114646 |
10 | 20310149751 |
11 | 8682606131 |
12 | 3b299b2a73 |
13 | 1bb8a1a4b8 |
14 | da957c103 |
15 | 7dd0d2236 |
hex | 4ba944a77 |
20310149751 has 12 divisors (see below), whose sum is σ = 27981937656. Its totient is φ = 13103320560.
The previous prime is 20310149729. The next prime is 20310149767. The reversal of 20310149751 is 15794101302.
It is not a de Polignac number, because 20310149751 - 214 = 20310133367 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20310149711) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3519516 + ... + 3525281.
It is an arithmetic number, because the mean of its divisors is an integer number (2331828138).
Almost surely, 220310149751 is an apocalyptic number.
20310149751 is a deficient number, since it is larger than the sum of its proper divisors (7671787905).
20310149751 is an equidigital number, since it uses as much as digits as its factorization.
20310149751 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7044862 (or 7044831 counting only the distinct ones).
The product of its (nonzero) digits is 7560, while the sum is 33.
The spelling of 20310149751 in words is "twenty billion, three hundred ten million, one hundred forty-nine thousand, seven hundred fifty-one".
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