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51896952 = 2332720791
BaseRepresentation
bin1100010111111…
…0001001111000
310121122122020100
43011332021320
5101241200302
65052155400
71200055032
oct305761170
9117578210
1051896952
1127326a48
1215468b60
13a9a0973
146c6cc52
154851d1c
hex317e278

51896952 has 24 divisors (see below), whose sum is σ = 140554440. Its totient is φ = 17298960.

The previous prime is 51896893. The next prime is 51896959. The reversal of 51896952 is 25969815.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 51896898 and 51896907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51896959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 360324 + ... + 360467.

It is an arithmetic number, because the mean of its divisors is an integer number (5856435).

Almost surely, 251896952 is an apocalyptic number.

It is an amenable number.

51896952 is an abundant number, since it is smaller than the sum of its proper divisors (88657488).

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

51896952 is a wasteful number, since it uses less digits than its factorization.

51896952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720803 (or 720796 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 51896952 is about 7203.9539143445. The cubic root of 51896952 is about 373.0043963477.

The spelling of 51896952 in words is "fifty-one million, eight hundred ninety-six thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 720791 1441582 2162373 2883164 4324746 5766328 6487119 8649492 12974238 17298984 25948476 51896952