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51896080 = 2452922369
BaseRepresentation
bin1100010111110…
…1111100010000
310121122121001001
43011331330100
5101241133310
65052151344
71200052345
oct305757420
9117577031
1051896080
1127326325
1215468554
13a9a0452
146c6c7cc
15485193a
hex317df10

51896080 has 40 divisors (see below), whose sum is σ = 124824600. Its totient is φ = 20041728.

The previous prime is 51896069. The next prime is 51896081. The reversal of 51896080 is 8069815.

It can be written as a sum of positive squares in 4 ways, for example, as 4946176 + 46949904 = 2224^2 + 6852^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (51896081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8865 + ... + 13504.

It is an arithmetic number, because the mean of its divisors is an integer number (3120615).

Almost surely, 251896080 is an apocalyptic number.

It is an amenable number.

51896080 is an abundant number, since it is smaller than the sum of its proper divisors (72928520).

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

51896080 is a wasteful number, since it uses less digits than its factorization.

51896080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22411 (or 22405 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 51896080 is about 7203.8933917709. The cubic root of 51896080 is about 373.0023071970.

The spelling of 51896080 in words is "fifty-one million, eight hundred ninety-six thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 80 116 145 232 290 464 580 1160 2320 22369 44738 89476 111845 178952 223690 357904 447380 648701 894760 1297402 1789520 2594804 3243505 5189608 6487010 10379216 12974020 25948040 51896080