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51050131 = 1119475197
BaseRepresentation
bin1100001010111…
…1011010010011
310120001121121121
43002233122103
5101032101011
65022103111
71156630126
oct302573223
9116047547
1051050131
11268a87a0
121511aa97
13a7653a2
146acc3bd
154735e71
hex30af693

51050131 has 16 divisors (see below), whose sum is σ = 59880960. Its totient is φ = 43022880.

The previous prime is 51050101. The next prime is 51050143. The reversal of 51050131 is 13105015.

It is a cyclic number.

It is not a de Polignac number, because 51050131 - 215 = 51017363 is a prime.

It is a super-2 number, since 2×510501312 = 5212231750234322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51050101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7225 + ... + 12421.

It is an arithmetic number, because the mean of its divisors is an integer number (3742560).

Almost surely, 251050131 is an apocalyptic number.

51050131 is a deficient number, since it is larger than the sum of its proper divisors (8830829).

51050131 is a wasteful number, since it uses less digits than its factorization.

51050131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 51050131 is about 7144.9374384945. The cubic root of 51050131 is about 370.9644451703.

Adding to 51050131 its reverse (13105015), we get a palindrome (64155146).

Subtracting from 51050131 its reverse (13105015), we obtain a triangular number (37945116 = T8711).

The spelling of 51050131 in words is "fifty-one million, fifty thousand, one hundred thirty-one".

Divisors: 1 11 19 47 209 517 893 5197 9823 57167 98743 244259 1086173 2686849 4640921 51050131