Base | Representation |
---|---|
bin | 1100010111101… |
… | …0111101101000 |
3 | 10121121222022012 |
4 | 3011322331220 |
5 | 101240241010 |
6 | 5052015052 |
7 | 1200001646 |
oct | 305727550 |
9 | 117558265 |
10 | 51883880 |
11 | 27318144 |
12 | 15461488 |
13 | a997a29 |
14 | 6c68196 |
15 | 484d005 |
hex | 317af68 |
51883880 has 32 divisors (see below), whose sum is σ = 116945640. Its totient is φ = 20716800.
The previous prime is 51883859. The next prime is 51883933. The reversal of 51883880 is 8838815.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 33616804 + 18267076 = 5798^2 + 4274^2 .
It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39230 + ... + 40530.
Almost surely, 251883880 is an apocalyptic number.
It is an amenable number.
51883880 is an abundant number, since it is smaller than the sum of its proper divisors (65061760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
51883880 is a wasteful number, since it uses less digits than its factorization.
51883880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2309 (or 2305 counting only the distinct ones).
The product of its (nonzero) digits is 61440, while the sum is 41.
The square root of 51883880 is about 7203.0465776642. The cubic root of 51883880 is about 372.9730757998.
The spelling of 51883880 in words is "fifty-one million, eight hundred eighty-three thousand, eight hundred eighty".
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