Search a number
-
+
51254965 = 530233391
BaseRepresentation
bin1100001110000…
…1011010110101
310120110000121001
43003201122311
5101110124330
65030323301
71161442246
oct303413265
9116400531
1051254965
1126a28683
12151b9531
13a8076a8
146b42ccd
1547769ca
hex30e16b5

51254965 has 8 divisors (see below), whose sum is σ = 61544448. Its totient is φ = 40978320.

The previous prime is 51254947. The next prime is 51254969. The reversal of 51254965 is 56945215.

51254965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51254965 - 211 = 51252917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51254969) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13420 + ... + 16810.

It is an arithmetic number, because the mean of its divisors is an integer number (7693056).

Almost surely, 251254965 is an apocalyptic number.

It is an amenable number.

51254965 is a deficient number, since it is larger than the sum of its proper divisors (10289483).

51254965 is a wasteful number, since it uses less digits than its factorization.

51254965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419.

The product of its digits is 54000, while the sum is 37.

The square root of 51254965 is about 7159.2572938818. The cubic root of 51254965 is about 371.4599367356.

The spelling of 51254965 in words is "fifty-one million, two hundred fifty-four thousand, nine hundred sixty-five".

Divisors: 1 5 3023 3391 15115 16955 10250993 51254965