Base | Representation |
---|---|
bin | 10010101000101100… |
… | …111001011011000100 |
3 | 1220122112202001010101 |
4 | 102220230321123010 |
5 | 311440103223022 |
6 | 13105332133444 |
7 | 1305604662421 |
oct | 225054713304 |
9 | 56575661111 |
10 | 20010211012 |
11 | 8539273780 |
12 | 3a65467284 |
13 | 1b6b84155c |
14 | d7b7c2d48 |
15 | 7c1ad6627 |
hex | 4a8b396c4 |
20010211012 has 48 divisors (see below), whose sum is σ = 40672195200. Its totient is φ = 8513164800.
The previous prime is 20010210971. The next prime is 20010211027. The reversal of 20010211012 is 21011201002.
It is a self number, because there is not a number n which added to its sum of digits gives 20010211012.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61489 + ... + 209287.
It is an arithmetic number, because the mean of its divisors is an integer number (847337400).
Almost surely, 220010211012 is an apocalyptic number.
20010211012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
20010211012 is an abundant number, since it is smaller than the sum of its proper divisors (20661984188).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20010211012 is a wasteful number, since it uses less digits than its factorization.
20010211012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 148012 (or 148010 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 10.
Adding to 20010211012 its reverse (21011201002), we get a palindrome (41021412014).
The spelling of 20010211012 in words is "twenty billion, ten million, two hundred eleven thousand, twelve".
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