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51070194 = 2327409991
BaseRepresentation
bin1100001011010…
…0010011110010
310120002122010200
43002310103302
5101033221234
65022340030
71160042460
oct302642362
9116078120
1051070194
112691187a
121512a616
13a771566
146ad5830
15473bd99
hex30b44f2

51070194 has 48 divisors (see below), whose sum is σ = 126896640. Its totient is φ = 14541120.

The previous prime is 51070183. The next prime is 51070199. The reversal of 51070194 is 49107015.

It is not an unprimeable number, because it can be changed into a prime (51070199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51039 + ... + 52029.

It is an arithmetic number, because the mean of its divisors is an integer number (2643680).

Almost surely, 251070194 is an apocalyptic number.

51070194 is an abundant number, since it is smaller than the sum of its proper divisors (75826446).

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

51070194 is a wasteful number, since it uses less digits than its factorization.

51070194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415 (or 1412 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 51070194 is about 7146.3413016732. The cubic root of 51070194 is about 371.0130358708.

The spelling of 51070194 in words is "fifty-one million, seventy thousand, one hundred ninety-four".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 409 818 991 1227 1982 2454 2863 2973 3681 5726 5946 6937 7362 8589 8919 13874 17178 17838 20811 25767 41622 51534 62433 124866 405319 810638 1215957 2431914 2837233 3647871 5674466 7295742 8511699 17023398 25535097 51070194