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51379682 = 2139421439
BaseRepresentation
bin1100001111111…
…1110111100010
310120200100200012
43003333313202
5101123122212
65033124522
71162501664
oct303776742
9116610605
1051379682
1127003352
1215259742
13a84c3a3
146b76534
15479d922
hex30ffde2

51379682 has 16 divisors (see below), whose sum is σ = 77985600. Its totient is φ = 25386480.

The previous prime is 51379681. The next prime is 51379693. The reversal of 51379682 is 28697315.

It is a super-2 number, since 2×513796822 = 5279743444842248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51379681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116819 + ... + 117257.

It is an arithmetic number, because the mean of its divisors is an integer number (4874100).

Almost surely, 251379682 is an apocalyptic number.

51379682 is a deficient number, since it is larger than the sum of its proper divisors (26605918).

51379682 is a wasteful number, since it uses less digits than its factorization.

51379682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001.

The product of its digits is 90720, while the sum is 41.

The square root of 51379682 is about 7167.9621929807. The cubic root of 51379682 is about 371.7609797274.

The spelling of 51379682 in words is "fifty-one million, three hundred seventy-nine thousand, six hundred eighty-two".

Divisors: 1 2 139 278 421 439 842 878 58519 61021 117038 122042 184819 369638 25689841 51379682