Base | Representation |
---|---|
bin | 101111101111111110… |
… | …101100101101111010 |
3 | 11220100011010001222120 |
4 | 233233332230231322 |
5 | 1320000313042340 |
6 | 35315315502110 |
7 | 3463352605212 |
oct | 575776545572 |
9 | 156304101876 |
10 | 51270830970 |
11 | 1a820058187 |
12 | 9b2a5b7936 |
13 | 4ab1134008 |
14 | 26a541b242 |
15 | 15012224d0 |
hex | beffacb7a |
51270830970 has 32 divisors (see below), whose sum is σ = 123694248960. Its totient is φ = 13600637760.
The previous prime is 51270830939. The next prime is 51270830983. The reversal of 51270830970 is 7903807215.
It is a super-2 number, since 2×512708309702 (a number of 22 digits) contains 22 as substring.
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, 4468165 + ... + 4479624.
It is an arithmetic number, because the mean of its divisors is an integer number (3865445280).
Almost surely, 251270830970 is an apocalyptic number.
51270830970 is an abundant number, since it is smaller than the sum of its proper divisors (72423417990).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
51270830970 is a wasteful number, since it uses less digits than its factorization.
51270830970 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8947990.
The product of its (nonzero) digits is 105840, while the sum is 42.
The spelling of 51270830970 in words is "fifty-one billion, two hundred seventy million, eight hundred thirty thousand, nine hundred seventy".
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