Base | Representation |
---|---|
bin | 111100010001010001… |
… | …000101101100010000 |
3 | 20012001001012001222120 |
4 | 330101101011230100 |
5 | 2030013313424442 |
6 | 45421305534240 |
7 | 4450451432325 |
oct | 742121055420 |
9 | 205031161876 |
10 | 64714201872 |
11 | 25499530771 |
12 | 106607a4380 |
13 | 6144321258 |
14 | 31bc9dab4c |
15 | 1a3b5534ec |
hex | f11445b10 |
64714201872 has 160 divisors (see below), whose sum is σ = 172168623360. Its totient is φ = 20939520000.
The previous prime is 64714201831. The next prime is 64714201883. The reversal of 64714201872 is 27810241746.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78823222 + ... + 78824042.
It is an arithmetic number, because the mean of its divisors is an integer number (1076053896).
Almost surely, 264714201872 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 64714201872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86084311680).
64714201872 is an abundant number, since it is smaller than the sum of its proper divisors (107454421488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64714201872 is a wasteful number, since it uses less digits than its factorization.
64714201872 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1233 (or 1227 counting only the distinct ones).
The product of its (nonzero) digits is 150528, while the sum is 42.
The spelling of 64714201872 in words is "sixty-four billion, seven hundred fourteen million, two hundred one thousand, eight hundred seventy-two".
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