Base | Representation |
---|---|
bin | 10010101000100011… |
… | …001111010010110000 |
3 | 1220122100222102001210 |
4 | 102220203033102300 |
5 | 311433431213102 |
6 | 13105202000120 |
7 | 1305544316046 |
oct | 225043172260 |
9 | 56570872053 |
10 | 20007679152 |
11 | 85378a452a |
12 | 3a64646040 |
13 | 1b6b166006 |
14 | d7b324396 |
15 | 7c178636c |
hex | 4a88cf4b0 |
20007679152 has 80 divisors (see below), whose sum is σ = 52953360768. Its totient is φ = 6506142720.
The previous prime is 20007679141. The next prime is 20007679163. The reversal of 20007679152 is 25197670002.
It is an interprime number because it is at equal distance from previous prime (20007679141) and next prime (20007679163).
It is a self number, because there is not a number n which added to its sum of digits gives 20007679152.
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, 1812883 + ... + 1823885.
Almost surely, 220007679152 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20007679152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26476680384).
20007679152 is an abundant number, since it is smaller than the sum of its proper divisors (32945681616).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20007679152 is a wasteful number, since it uses less digits than its factorization.
20007679152 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11938 (or 11932 counting only the distinct ones).
The product of its (nonzero) digits is 52920, while the sum is 39.
The spelling of 20007679152 in words is "twenty billion, seven million, six hundred seventy-nine thousand, one hundred fifty-two".
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