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51202156 = 2213019839
BaseRepresentation
bin1100001101010…
…0100001101100
310120100100011011
43003110201230
5101101432111
65025235004
71161132265
oct303244154
9116310134
1051202156
11269a1a35
1215192a64
13a7b9645
146b2b96c
154766021
hex30d486c

51202156 has 12 divisors (see below), whose sum is σ = 89681760. Its totient is φ = 25578800.

The previous prime is 51202097. The next prime is 51202159. The reversal of 51202156 is 65120215.

It is not an unprimeable number, because it can be changed into a prime (51202159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285 + ... + 10123.

It is an arithmetic number, because the mean of its divisors is an integer number (7473480).

Almost surely, 251202156 is an apocalyptic number.

It is an amenable number.

51202156 is a deficient number, since it is larger than the sum of its proper divisors (38479604).

51202156 is a wasteful number, since it uses less digits than its factorization.

51202156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11144 (or 11142 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 51202156 is about 7155.5681814933. The cubic root of 51202156 is about 371.3323187333.

The spelling of 51202156 in words is "fifty-one million, two hundred two thousand, one hundred fifty-six".

Divisors: 1 2 4 1301 2602 5204 9839 19678 39356 12800539 25601078 51202156