Base | Representation |
---|---|
bin | 11100010101111000… |
… | …010011101100101010 |
3 | 2220112211220022210210 |
4 | 130111320103230222 |
5 | 444311023301404 |
6 | 21551420121550 |
7 | 2125062325350 |
oct | 342570235452 |
9 | 86484808723 |
10 | 30431853354 |
11 | 119a6a95931 |
12 | 5a936962b6 |
13 | 2b3c9aa126 |
14 | 16899417d0 |
15 | bd19d0689 |
hex | 715e13b2a |
30431853354 has 32 divisors (see below), whose sum is σ = 69768700416. Its totient is φ = 8668542960.
The previous prime is 30431853341. The next prime is 30431853373. The reversal of 30431853354 is 45335813403.
It is a super-2 number, since 2×304318533542 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1080612 + ... + 1108415.
It is an arithmetic number, because the mean of its divisors is an integer number (2180271888).
Almost surely, 230431853354 is an apocalyptic number.
30431853354 is an abundant number, since it is smaller than the sum of its proper divisors (39336847062).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30431853354 is a wasteful number, since it uses less digits than its factorization.
30431853354 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2189370.
The product of its (nonzero) digits is 259200, while the sum is 39.
It can be divided in two parts, 30431 and 853354, that added together give a triangular number (883785 = T1329).
The spelling of 30431853354 in words is "thirty billion, four hundred thirty-one million, eight hundred fifty-three thousand, three hundred fifty-four".
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