Base | Representation |
---|---|
bin | 10011011011100101… |
… | …011110010111111000 |
3 | 1222212001010002200110 |
4 | 103123211132113320 |
5 | 320212124400344 |
6 | 13330145504320 |
7 | 1336012152123 |
oct | 233345362770 |
9 | 58761102613 |
10 | 20863903224 |
11 | 893714732a |
12 | 40633420a0 |
13 | 1c76673288 |
14 | 101cd273ba |
15 | 821a173b9 |
hex | 4db95e5f8 |
20863903224 has 64 divisors (see below), whose sum is σ = 52863350400. Its totient is φ = 6861062016.
The previous prime is 20863903219. The next prime is 20863903237. The reversal of 20863903224 is 42230936802.
It is a congruent number.
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, 1465002 + ... + 1479174.
It is an arithmetic number, because the mean of its divisors is an integer number (825989850).
Almost surely, 220863903224 is an apocalyptic number.
20863903224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
20863903224 is an abundant number, since it is smaller than the sum of its proper divisors (31999447176).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20863903224 is a wasteful number, since it uses less digits than its factorization.
20863903224 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15004 (or 15000 counting only the distinct ones).
The product of its (nonzero) digits is 124416, while the sum is 39.
The spelling of 20863903224 in words is "twenty billion, eight hundred sixty-three million, nine hundred three thousand, two hundred twenty-four".
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