Base | Representation |
---|---|
bin | 11100100011110100… |
… | …010101010000011110 |
3 | 2221011010220120101102 |
4 | 130203310111100132 |
5 | 1000300404122230 |
6 | 22030532113102 |
7 | 2133632040260 |
oct | 344364252036 |
9 | 87133816342 |
10 | 30665692190 |
11 | 12006a90471 |
12 | 5b39a65792 |
13 | 2b792817c3 |
14 | 16aca11b30 |
15 | be72c1045 |
hex | 723d1541e |
30665692190 has 64 divisors (see below), whose sum is σ = 63418374144. Its totient is φ = 10458315648.
The previous prime is 30665692177. The next prime is 30665692217. The reversal of 30665692190 is 9129656603.
It is a super-2 number, since 2×306656921902 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17198039 + ... + 17199821.
It is an arithmetic number, because the mean of its divisors is an integer number (990912096).
Almost surely, 230665692190 is an apocalyptic number.
30665692190 is an abundant number, since it is smaller than the sum of its proper divisors (32752681954).
30665692190 is a wasteful number, since it uses less digits than its factorization.
30665692190 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2961.
The product of its (nonzero) digits is 524880, while the sum is 47.
The spelling of 30665692190 in words is "thirty billion, six hundred sixty-five million, six hundred ninety-two thousand, one hundred ninety".
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