Base | Representation |
---|---|
bin | 100000101000001111… |
… | …0011101100111110100 |
3 | 20200212021101111112120 |
4 | 1001100132131213310 |
5 | 2122000311432133 |
6 | 52104535315540 |
7 | 5030251052520 |
oct | 1012036354764 |
9 | 220767344476 |
10 | 70069639668 |
11 | 27797537416 |
12 | 116b621bbb0 |
13 | 67b89bb162 |
14 | 3569d82d80 |
15 | 1c517b9ab3 |
hex | 105079d9f4 |
70069639668 has 48 divisors (see below), whose sum is σ = 196686712320. Its totient is φ = 18966217824.
The previous prime is 70069639603. The next prime is 70069639693. The reversal of 70069639668 is 86693696007.
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, 21950046 + ... + 21953237.
It is an arithmetic number, because the mean of its divisors is an integer number (4097639840).
Almost surely, 270069639668 is an apocalyptic number.
It is an amenable number.
70069639668 is an abundant number, since it is smaller than the sum of its proper divisors (126617072652).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70069639668 is a wasteful number, since it uses less digits than its factorization.
70069639668 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43903316 (or 43903314 counting only the distinct ones).
The product of its (nonzero) digits is 17635968, while the sum is 60.
The spelling of 70069639668 in words is "seventy billion, sixty-nine million, six hundred thirty-nine thousand, six hundred sixty-eight".
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