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51196523 = 7421323
BaseRepresentation
bin1100001101001…
…1001001101011
310120100001102112
43003103021223
5101101242043
65025152535
71161110000
oct303231153
9116301375
1051196523
1126998784
121518b74b
13a7b6c01
146b298a7
154764518
hex30d326b

51196523 has 10 divisors (see below), whose sum is σ = 59728524. Its totient is φ = 43880676.

The previous prime is 51196517. The next prime is 51196529. The reversal of 51196523 is 32569115.

51196523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51196517) and next prime (51196529).

It is not a de Polignac number, because 51196523 - 216 = 51130987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51196523.

It is not an unprimeable number, because it can be changed into a prime (51196529) 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 9 ways as a sum of consecutive naturals, for example, 8261 + ... + 13062.

Almost surely, 251196523 is an apocalyptic number.

51196523 is a deficient number, since it is larger than the sum of its proper divisors (8532001).

51196523 is an frugal number, since it uses more digits than its factorization.

51196523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21351 (or 21330 counting only the distinct ones).

The product of its digits is 8100, while the sum is 32.

The square root of 51196523 is about 7155.1745611131. The cubic root of 51196523 is about 371.3187008715.

The spelling of 51196523 in words is "fifty-one million, one hundred ninety-six thousand, five hundred twenty-three".

Divisors: 1 7 49 343 2401 21323 149261 1044827 7313789 51196523