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51897411 = 325766379
BaseRepresentation
bin1100010111111…
…0010001000011
310121122122212100
43011332101003
5101241204121
65052201443
71200056256
oct305762103
9117578770
1051897411
1127327325
1215469283
13a9a0c37
146c6d09d
154852026
hex317e443

51897411 has 6 divisors (see below), whose sum is σ = 74962940. Its totient is φ = 34598268.

The previous prime is 51897383. The next prime is 51897427. The reversal of 51897411 is 11479815.

51897411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51897411 - 217 = 51766339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51897451) 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 5 ways as a sum of consecutive naturals, for example, 2883181 + ... + 2883198.

Almost surely, 251897411 is an apocalyptic number.

51897411 is a deficient number, since it is larger than the sum of its proper divisors (23065529).

51897411 is a wasteful number, since it uses less digits than its factorization.

51897411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5766385 (or 5766382 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 51897411 is about 7203.9857717794. The cubic root of 51897411 is about 373.0054960174.

The spelling of 51897411 in words is "fifty-one million, eight hundred ninety-seven thousand, four hundred eleven".

Divisors: 1 3 9 5766379 17299137 51897411