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51049080 = 23325141803
BaseRepresentation
bin1100001010111…
…1001001111000
310120001120011200
43002233021320
5101032032310
65022054200
71156624065
oct302571170
9116046150
1051049080
11268a7a25
121511a360
13a764a74
146acbc6c
1547359c0
hex30af278

51049080 has 48 divisors (see below), whose sum is σ = 165910680. Its totient is φ = 13612992.

The previous prime is 51049057. The next prime is 51049081. The reversal of 51049080 is 8094015.

51049080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51049081) 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 11 ways as a sum of consecutive naturals, for example, 70542 + ... + 71261.

Almost surely, 251049080 is an apocalyptic number.

It is an amenable number.

51049080 is an abundant number, since it is smaller than the sum of its proper divisors (114861600).

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

51049080 is a wasteful number, since it uses less digits than its factorization.

51049080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141820 (or 141813 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 51049080 is about 7144.8638895363. The cubic root of 51049080 is about 370.9618993962.

The spelling of 51049080 in words is "fifty-one million, forty-nine thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 141803 283606 425409 567212 709015 850818 1134424 1276227 1418030 1701636 2127045 2552454 2836060 3403272 4254090 5104908 5672120 6381135 8508180 10209816 12762270 17016360 25524540 51049080