Base | Representation |
---|---|
bin | 100110001011101… |
… | …011100010000100 |
3 | 1122122101122122111 |
4 | 212023223202010 |
5 | 2302443033400 |
6 | 143322110404 |
7 | 21605656054 |
oct | 4613534204 |
9 | 1578348574 |
10 | 640596100 |
11 | 2a9666371 |
12 | 15a64b404 |
13 | a2940861 |
14 | 61113564 |
15 | 3b38b3ba |
hex | 262eb884 |
640596100 has 27 divisors (see below), whose sum is σ = 1390642981. Its totient is φ = 256137200.
The previous prime is 640596083. The next prime is 640596113. The reversal of 640596100 is 1695046.
The square root of 640596100 is 25310.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 230614596 + 409981504 = 15186^2 + 20248^2 .
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 251835 + ... + 254365.
Almost surely, 2640596100 is an apocalyptic number.
640596100 is the 25310-th square number.
It is an amenable number.
640596100 is an abundant number, since it is smaller than the sum of its proper divisors (750046881).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
640596100 is an equidigital number, since it uses as much as digits as its factorization.
640596100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5076 (or 2538 counting only the distinct ones).
The product of its (nonzero) digits is 6480, while the sum is 31.
The cubic root of 640596100 is about 862.0413468467.
The spelling of 640596100 in words is "six hundred forty million, five hundred ninety-six thousand, one hundred".
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