Base | Representation |
---|---|
bin | 10011011100100001… |
… | …001011100000110110 |
3 | 1222220010120021100120 |
4 | 103130201023200312 |
5 | 320230131221424 |
6 | 13331505152410 |
7 | 1336262200032 |
oct | 233441134066 |
9 | 58803507316 |
10 | 20879554614 |
11 | 8944a67466 |
12 | 406862b706 |
13 | 1c79993259 |
14 | 102103d1c2 |
15 | 8230a9a79 |
hex | 4dc84b836 |
20879554614 has 32 divisors (see below), whose sum is σ = 42416213760. Its totient is φ = 6850653600.
The previous prime is 20879554607. The next prime is 20879554643. The reversal of 20879554614 is 41645597802.
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, 224104 + ... + 303284.
It is an arithmetic number, because the mean of its divisors is an integer number (1325506680).
Almost surely, 220879554614 is an apocalyptic number.
20879554614 is an abundant number, since it is smaller than the sum of its proper divisors (21536659146).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20879554614 is a wasteful number, since it uses less digits than its factorization.
20879554614 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 79876.
The product of its (nonzero) digits is 2419200, while the sum is 51.
The spelling of 20879554614 in words is "twenty billion, eight hundred seventy-nine million, five hundred fifty-four thousand, six hundred fourteen".
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