Search a number
-
+
51769926 = 23213221239
BaseRepresentation
bin1100010101111…
…1001001000110
310121102011222200
43011133021012
5101223114201
65045335330
71166015505
oct305371106
9117364880
1051769926
112724a56a
1215407546
13a957bc0
146c3883c
154829386
hex315f246

51769926 has 24 divisors (see below), whose sum is σ = 120797040. Its totient is φ = 15929136.

The previous prime is 51769903. The next prime is 51769931. The reversal of 51769926 is 62996715.

It is a happy number.

51769926 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 110386 + ... + 110853.

It is an arithmetic number, because the mean of its divisors is an integer number (5033210).

Almost surely, 251769926 is an apocalyptic number.

51769926 is an abundant number, since it is smaller than the sum of its proper divisors (69027114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51769926 is a wasteful number, since it uses less digits than its factorization.

51769926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221260 (or 221257 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 51769926 is about 7195.1321044162. The cubic root of 51769926 is about 372.6998186221.

The spelling of 51769926 in words is "fifty-one million, seven hundred sixty-nine thousand, nine hundred twenty-six".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 221239 442478 663717 1327434 1991151 2876107 3982302 5752214 8628321 17256642 25884963 51769926