Base | Representation |
---|---|
bin | 1010110110010111… |
… | …1101000111010100 |
3 | 21111222012122201201 |
4 | 2231211331013110 |
5 | 21431034024040 |
6 | 1200555002244 |
7 | 132113026324 |
oct | 25545750724 |
9 | 7458178651 |
10 | 2912408020 |
11 | 1264a84285 |
12 | 693439384 |
13 | 3754c6672 |
14 | 1d8b25284 |
15 | 120a40a9a |
hex | ad97d1d4 |
2912408020 has 12 divisors (see below), whose sum is σ = 6116056884. Its totient is φ = 1164963200.
The previous prime is 2912407991. The next prime is 2912408071. The reversal of 2912408020 is 208042192.
It can be written as a sum of positive squares in 2 ways, for example, as 622402704 + 2290005316 = 24948^2 + 47854^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 2912408020.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72810181 + ... + 72810220.
It is an arithmetic number, because the mean of its divisors is an integer number (509671407).
Almost surely, 22912408020 is an apocalyptic number.
2912408020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2912408020 is an abundant number, since it is smaller than the sum of its proper divisors (3203648864).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2912408020 is a wasteful number, since it uses less digits than its factorization.
2912408020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 145620410 (or 145620408 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 28.
The square root of 2912408020 is about 53966.7306773349. The cubic root of 2912408020 is about 1428.0740891919.
The spelling of 2912408020 in words is "two billion, nine hundred twelve million, four hundred eight thousand, twenty".
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