Base | Representation |
---|---|
bin | 11100100100001000… |
… | …100110111110111000 |
3 | 2221011111220121212010 |
4 | 130210020212332320 |
5 | 1000303234221142 |
6 | 22031242045520 |
7 | 2134025156304 |
oct | 344410467670 |
9 | 87144817763 |
10 | 30671007672 |
11 | 12009a91028 |
12 | 5b3b7a98a0 |
13 | 2b7a3c3066 |
14 | 16ad5d6d04 |
15 | be79c0e9c |
hex | 724226fb8 |
30671007672 has 64 divisors (see below), whose sum is σ = 77401589760. Its totient is φ = 10127577600.
The previous prime is 30671007671. The next prime is 30671007737. The reversal of 30671007672 is 27670017603.
It is a self number, because there is not a number n which added to its sum of digits gives 30671007672.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30671007671) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 1090863 + ... + 1118625.
It is an arithmetic number, because the mean of its divisors is an integer number (1209399840).
Almost surely, 230671007672 is an apocalyptic number.
It is an amenable number.
30671007672 is an abundant number, since it is smaller than the sum of its proper divisors (46730582088).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30671007672 is a wasteful number, since it uses less digits than its factorization.
30671007672 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28204 (or 28200 counting only the distinct ones).
The product of its (nonzero) digits is 74088, while the sum is 39.
The spelling of 30671007672 in words is "thirty billion, six hundred seventy-one million, seven thousand, six hundred seventy-two".
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