Base | Representation |
---|---|
bin | 1000101100111… |
… | …01010000000100 |
3 | 12002100120110210 |
4 | 10112131100010 |
5 | 122141331334 |
6 | 11124315420 |
7 | 1544311605 |
oct | 426352004 |
9 | 162316423 |
10 | 72995844 |
11 | 38227949 |
12 | 20542b70 |
13 | 1217a30c |
14 | 99a1dac |
15 | 661d5e9 |
hex | 459d404 |
72995844 has 36 divisors (see below), whose sum is σ = 172595696. Its totient is φ = 24011568.
The previous prime is 72995843. The next prime is 72995849. The reversal of 72995844 is 44859927.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 72995793 and 72995802.
It is not an unprimeable number, because it can be changed into a prime (72995843) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82227 + ... + 83109.
Almost surely, 272995844 is an apocalyptic number.
It is an amenable number.
72995844 is an abundant number, since it is smaller than the sum of its proper divisors (99599852).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72995844 is a wasteful number, since it uses less digits than its factorization.
72995844 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1056 (or 971 counting only the distinct ones).
The product of its digits is 725760, while the sum is 48.
The square root of 72995844 is about 8543.7605303520. The cubic root of 72995844 is about 417.9259882850.
The spelling of 72995844 in words is "seventy-two million, nine hundred ninety-five thousand, eight hundred forty-four".
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