Base | Representation |
---|---|
bin | 11100110001000000… |
… | …000011110111001000 |
3 | 2221201120002120221122 |
4 | 130301000003313020 |
5 | 1001224014323342 |
6 | 22104512454412 |
7 | 2142256032023 |
oct | 346100036710 |
9 | 87646076848 |
10 | 30886870472 |
11 | 1210a918a37 |
12 | 5b9bb4a408 |
13 | 2bb3042623 |
14 | 16d01481ba |
15 | c0b9104d2 |
hex | 731003dc8 |
30886870472 has 16 divisors (see below), whose sum is σ = 57940321740. Its totient is φ = 15436118016.
The previous prime is 30886870457. The next prime is 30886870477. The reversal of 30886870472 is 27407868803.
It can be written as a sum of positive squares in 2 ways, for example, as 24606941956 + 6279928516 = 156866^2 + 79246^2 .
It is not an unprimeable number, because it can be changed into a prime (30886870477) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896693 + ... + 930500.
Almost surely, 230886870472 is an apocalyptic number.
It is an amenable number.
30886870472 is a deficient number, since it is larger than the sum of its proper divisors (27053451268).
30886870472 is a wasteful number, since it uses less digits than its factorization.
30886870472 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1829312 (or 1829308 counting only the distinct ones).
The product of its (nonzero) digits is 3612672, while the sum is 53.
The spelling of 30886870472 in words is "thirty billion, eight hundred eighty-six million, eight hundred seventy thousand, four hundred seventy-two".
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