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51875492 = 2212968873
BaseRepresentation
bin1100010111100…
…0111010100100
310121121112210112
43011320322210
5101240003432
65051512152
71166635334
oct305707244
9117545715
1051875492
1127311909
1215458658
13a993c76
146c650c4
15484a7b2
hex3178ea4

51875492 has 6 divisors (see below), whose sum is σ = 90782118. Its totient is φ = 25937744.

The previous prime is 51875471. The next prime is 51875497. The reversal of 51875492 is 29457815.

51875492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 44169316 + 7706176 = 6646^2 + 2776^2 .

It is not an unprimeable number, because it can be changed into a prime (51875497) 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 as a sum of consecutive naturals, namely, 6484433 + ... + 6484440.

It is an arithmetic number, because the mean of its divisors is an integer number (15130353).

Almost surely, 251875492 is an apocalyptic number.

It is an amenable number.

51875492 is a deficient number, since it is larger than the sum of its proper divisors (38906626).

51875492 is a wasteful number, since it uses less digits than its factorization.

51875492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12968877 (or 12968875 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 51875492 is about 7202.4643005016. The cubic root of 51875492 is about 372.9529753577.

The spelling of 51875492 in words is "fifty-one million, eight hundred seventy-five thousand, four hundred ninety-two".

Divisors: 1 2 4 12968873 25937746 51875492