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51442674 = 2323372773
BaseRepresentation
bin1100010000111…
…1001111110010
310120210120002020
43010033033302
5101132131144
65034332310
71163153433
oct304171762
9116716066
1051442674
1127046708
121528a096
13a871c6a
146b9148a
1547b2419
hex310f3f2

51442674 has 16 divisors (see below), whose sum is σ = 107358912. Its totient is φ = 16401968.

The previous prime is 51442669. The next prime is 51442681. The reversal of 51442674 is 47624415.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186249 + ... + 186524.

It is an arithmetic number, because the mean of its divisors is an integer number (6709932).

Almost surely, 251442674 is an apocalyptic number.

51442674 is an abundant number, since it is smaller than the sum of its proper divisors (55916238).

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

51442674 is a wasteful number, since it uses less digits than its factorization.

51442674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372801.

The product of its digits is 26880, while the sum is 33.

The square root of 51442674 is about 7172.3548434249. The cubic root of 51442674 is about 371.9128452316.

The spelling of 51442674 in words is "fifty-one million, four hundred forty-two thousand, six hundred seventy-four".

Divisors: 1 2 3 6 23 46 69 138 372773 745546 1118319 2236638 8573779 17147558 25721337 51442674