Search a number
-
+
51774929 = 316772467
BaseRepresentation
bin1100010110000…
…0010111010001
310121102102211222
43011200113101
5101223244204
65045414425
71166036213
oct305402721
9117372758
1051774929
11272532a8
121540a415
13a95a26b
146c3a5b3
15482aabe
hex31605d1

51774929 has 8 divisors (see below), whose sum is σ = 53545728. Its totient is φ = 50010480.

The previous prime is 51774913. The next prime is 51774953. The reversal of 51774929 is 92947715.

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

It is a cyclic number.

It is not a de Polignac number, because 51774929 - 24 = 51774913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51774929.

It is not an unprimeable number, because it can be changed into a prime (51774959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19754 + ... + 22220.

It is an arithmetic number, because the mean of its divisors is an integer number (6693216).

Almost surely, 251774929 is an apocalyptic number.

It is an amenable number.

51774929 is a deficient number, since it is larger than the sum of its proper divisors (1770799).

51774929 is a wasteful number, since it uses less digits than its factorization.

51774929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3175.

The product of its digits is 158760, while the sum is 44.

The square root of 51774929 is about 7195.4797616281. The cubic root of 51774929 is about 372.7118240294.

The spelling of 51774929 in words is "fifty-one million, seven hundred seventy-four thousand, nine hundred twenty-nine".

Divisors: 1 31 677 2467 20987 76477 1670159 51774929