Base | Representation |
---|---|
bin | 111100011100100001… |
… | …100110100000100010 |
3 | 20012112012121002000200 |
4 | 330130201212200202 |
5 | 2030410142024340 |
6 | 45452134130030 |
7 | 4455234035331 |
oct | 743441464042 |
9 | 205465532020 |
10 | 64903079970 |
11 | 25586107673 |
12 | 106b3ab0916 |
13 | 61744b3141 |
14 | 31d9b25d18 |
15 | 1a4ce12330 |
hex | f1c866822 |
64903079970 has 48 divisors (see below), whose sum is σ = 170386362432. Its totient is φ = 17139451680.
The previous prime is 64903079953. The next prime is 64903079999. The reversal of 64903079970 is 7997030946.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3491436 + ... + 3509975.
It is an arithmetic number, because the mean of its divisors is an integer number (3549715884).
Almost surely, 264903079970 is an apocalyptic number.
64903079970 is an abundant number, since it is smaller than the sum of its proper divisors (105483282462).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64903079970 is a wasteful number, since it uses less digits than its factorization.
64903079970 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7001527 (or 7001524 counting only the distinct ones).
The product of its (nonzero) digits is 2571912, while the sum is 54.
It can be divided in two parts, 649030 and 79970, that added together give a cube (729000 = 903).
The spelling of 64903079970 in words is "sixty-four billion, nine hundred three million, seventy-nine thousand, nine hundred seventy".
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