Base | Representation |
---|---|
bin | 100001111100111000… |
… | …1110110101010001101 |
3 | 20222012020011102211010 |
4 | 1003321301312222031 |
5 | 2143304434304321 |
6 | 53254443515433 |
7 | 5160531250632 |
oct | 1037161665215 |
9 | 228166142733 |
10 | 72910072461 |
11 | 28a14920636 |
12 | 12169528b79 |
13 | 6b4c303c15 |
14 | 37592d0189 |
15 | 1d6ad3e676 |
hex | 10f9c76a8d |
72910072461 has 16 divisors (see below), whose sum is σ = 97667715200. Its totient is φ = 48379783680.
The previous prime is 72910072457. The next prime is 72910072559. The reversal of 72910072461 is 16427001927.
It is not a de Polignac number, because 72910072461 - 22 = 72910072457 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72910072861) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1415640 + ... + 1466238.
It is an arithmetic number, because the mean of its divisors is an integer number (6104232200).
Almost surely, 272910072461 is an apocalyptic number.
It is an amenable number.
72910072461 is a deficient number, since it is larger than the sum of its proper divisors (24757642739).
72910072461 is a wasteful number, since it uses less digits than its factorization.
72910072461 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52836.
The product of its (nonzero) digits is 42336, while the sum is 39.
The spelling of 72910072461 in words is "seventy-two billion, nine hundred ten million, seventy-two thousand, four hundred sixty-one".
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