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51364149 = 3163710459
BaseRepresentation
bin1100001111110…
…0000100110101
310120122120100220
43003330010311
5101122123044
65032524553
71162405464
oct303740465
9116576326
1051364149
1126aa2711
1215250759
13a8452b5
146b709db
154799019
hex30fc135

51364149 has 8 divisors (see below), whose sum is σ = 68533920. Its totient is φ = 34218576.

The previous prime is 51364147. The next prime is 51364153. The reversal of 51364149 is 94146315.

51364149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51364149 - 21 = 51364147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51364147) 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 7 ways as a sum of consecutive naturals, for example, 319 + ... + 10140.

It is an arithmetic number, because the mean of its divisors is an integer number (8566740).

Almost surely, 251364149 is an apocalyptic number.

It is an amenable number.

51364149 is a deficient number, since it is larger than the sum of its proper divisors (17169771).

51364149 is a wasteful number, since it uses less digits than its factorization.

51364149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12099.

The product of its digits is 12960, while the sum is 33.

The square root of 51364149 is about 7166.8786092692. The cubic root of 51364149 is about 371.7235126128.

The spelling of 51364149 in words is "fifty-one million, three hundred sixty-four thousand, one hundred forty-nine".

Divisors: 1 3 1637 4911 10459 31377 17121383 51364149