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51899882 = 243603487
BaseRepresentation
bin1100010111111…
…0110111101010
310121122210020212
43011332313222
5101241244012
65052221122
71200066416
oct305766752
9117583225
1051899882
1127329171
121546a7a2
13a9a20b8
146c6dd46
154852b22
hex317edea

51899882 has 8 divisors (see below), whose sum is σ = 79660416. Its totient is φ = 25346412.

The previous prime is 51899833. The next prime is 51899893. The reversal of 51899882 is 28899815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×518998822 = 5387195503227848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51899882.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301658 + ... + 301829.

It is an arithmetic number, because the mean of its divisors is an integer number (9957552).

Almost surely, 251899882 is an apocalyptic number.

51899882 is a deficient number, since it is larger than the sum of its proper divisors (27760534).

51899882 is a wasteful number, since it uses less digits than its factorization.

51899882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603532.

The product of its digits is 414720, while the sum is 50.

The square root of 51899882 is about 7204.1572720201. The cubic root of 51899882 is about 373.0114159142.

The spelling of 51899882 in words is "fifty-one million, eight hundred ninety-nine thousand, eight hundred eighty-two".

Divisors: 1 2 43 86 603487 1206974 25949941 51899882