Base | Representation |
---|---|
bin | 11100011011110000… |
… | …101010101000101110 |
3 | 2220210201112210000120 |
4 | 130123300222220232 |
5 | 1000011302412304 |
6 | 22005302505410 |
7 | 2130401040210 |
oct | 343360525056 |
9 | 86721483016 |
10 | 30530513454 |
11 | 11a47751701 |
12 | 5b00735266 |
13 | 2b57271a9c |
14 | 1698aa45b0 |
15 | bda4bd0d9 |
hex | 71bc2aa2e |
30530513454 has 32 divisors (see below), whose sum is σ = 72190379520. Its totient is φ = 8422210272.
The previous prime is 30530513441. The next prime is 30530513491. The reversal of 30530513454 is 45431503503.
It is a super-2 number, since 2×305305134542 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
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, 12531834 + ... + 12534269.
It is an arithmetic number, because the mean of its divisors is an integer number (2255949360).
Almost surely, 230530513454 is an apocalyptic number.
30530513454 is an abundant number, since it is smaller than the sum of its proper divisors (41659866066).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30530513454 is a wasteful number, since it uses less digits than its factorization.
30530513454 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25066144.
The product of its (nonzero) digits is 54000, while the sum is 33.
The spelling of 30530513454 in words is "thirty billion, five hundred thirty million, five hundred thirteen thousand, four hundred fifty-four".
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