Base | Representation |
---|---|
bin | 10011000100000001… |
… | …001010000111110101 |
3 | 1221211111002220012111 |
4 | 103010001022013311 |
5 | 313404414212000 |
6 | 13223023051021 |
7 | 1323141303613 |
oct | 230401120765 |
9 | 57744086174 |
10 | 20468507125 |
11 | 8753a363a0 |
12 | 3b72a40a71 |
13 | 1c127843a1 |
14 | dc26006b3 |
15 | 7ebe62cba |
hex | 4c404a1f5 |
20468507125 has 32 divisors (see below), whose sum is σ = 27886165632. Its totient is φ = 14875920000.
The previous prime is 20468507063. The next prime is 20468507159. The reversal of 20468507125 is 52170586402.
It is not a de Polignac number, because 20468507125 - 27 = 20468506997 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2397865 + ... + 2406385.
It is an arithmetic number, because the mean of its divisors is an integer number (871442676).
Almost surely, 220468507125 is an apocalyptic number.
20468507125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
20468507125 is a deficient number, since it is larger than the sum of its proper divisors (7417658507).
20468507125 is a wasteful number, since it uses less digits than its factorization.
20468507125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10294 (or 10284 counting only the distinct ones).
The product of its (nonzero) digits is 134400, while the sum is 40.
The spelling of 20468507125 in words is "twenty billion, four hundred sixty-eight million, five hundred seven thousand, one hundred twenty-five".
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