Base | Representation |
---|---|
bin | 11100100010011101… |
… | …001101100011001010 |
3 | 2221002112221021101212 |
4 | 130202131031203022 |
5 | 1000224032312330 |
6 | 22024354413122 |
7 | 2133233651012 |
oct | 344235154312 |
9 | 87075837355 |
10 | 30642854090 |
11 | 11aa5101902 |
12 | 5b322911a2 |
13 | 2b74616634 |
14 | 16a9988c42 |
15 | be52ae295 |
hex | 72274d8ca |
30642854090 has 16 divisors (see below), whose sum is σ = 55159308288. Its totient is φ = 12256659216.
The previous prime is 30642854087. The next prime is 30642854149. The reversal of 30642854090 is 9045824603.
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 7 ways as a sum of consecutive naturals, for example, 321719 + ... + 405941.
It is an arithmetic number, because the mean of its divisors is an integer number (3447456768).
Almost surely, 230642854090 is an apocalyptic number.
30642854090 is a deficient number, since it is larger than the sum of its proper divisors (24516454198).
30642854090 is a wasteful number, since it uses less digits than its factorization.
30642854090 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 120613.
The product of its (nonzero) digits is 207360, while the sum is 41.
The spelling of 30642854090 in words is "thirty billion, six hundred forty-two million, eight hundred fifty-four thousand, ninety".
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