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51793797 = 3112954121
BaseRepresentation
bin1100010110010…
…0111110000101
310121110101201210
43011210332011
5101224400142
65050042033
71166145216
oct305447605
9117411653
1051793797
11272664a0
1215419319
13a965a23
146c4340d
15483149c
hex3164f85

51793797 has 16 divisors (see below), whose sum is σ = 77935680. Its totient is φ = 30307200.

The previous prime is 51793793. The next prime is 51793813. The reversal of 51793797 is 79739715.

51793797 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 51793797 - 22 = 51793793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51793793) 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 15 ways as a sum of consecutive naturals, for example, 26104 + ... + 28017.

It is an arithmetic number, because the mean of its divisors is an integer number (4870980).

Almost surely, 251793797 is an apocalyptic number.

It is an amenable number.

51793797 is a deficient number, since it is larger than the sum of its proper divisors (26141883).

51793797 is a wasteful number, since it uses less digits than its factorization.

51793797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54164.

The product of its digits is 416745, while the sum is 48.

The square root of 51793797 is about 7196.7907431021. The cubic root of 51793797 is about 372.7570935112.

The spelling of 51793797 in words is "fifty-one million, seven hundred ninety-three thousand, seven hundred ninety-seven".

Divisors: 1 3 11 29 33 87 319 957 54121 162363 595331 1569509 1785993 4708527 17264599 51793797