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51293958 = 23192411867
BaseRepresentation
bin1100001110101…
…0111100000110
310120112000002020
43003222330012
5101112401313
65031224010
71161664032
oct303527406
9116460066
1051293958
1126a54a01
1215218006
13a81c371
146b531c2
154783323
hex30eaf06

51293958 has 32 divisors (see below), whose sum is σ = 108493440. Its totient is φ = 16122240.

The previous prime is 51293909. The next prime is 51293959. The reversal of 51293958 is 85939215.

51293958 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51293959) 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, 26541 + ... + 28407.

It is an arithmetic number, because the mean of its divisors is an integer number (3390420).

Almost surely, 251293958 is an apocalyptic number.

51293958 is an abundant number, since it is smaller than the sum of its proper divisors (57199482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51293958 is a wasteful number, since it uses less digits than its factorization.

51293958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132.

The product of its digits is 97200, while the sum is 42.

The square root of 51293958 is about 7161.9800334824. The cubic root of 51293958 is about 371.5541108044.

The spelling of 51293958 in words is "fifty-one million, two hundred ninety-three thousand, nine hundred fifty-eight".

Divisors: 1 2 3 6 19 38 57 114 241 482 723 1446 1867 3734 4579 5601 9158 11202 13737 27474 35473 70946 106419 212838 449947 899894 1349841 2699682 8548993 17097986 25646979 51293958