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52784960 = 265164953
BaseRepresentation
bin1100100101011…
…0111101000000
310200022202100112
43021112331000
5102003104320
65123210452
71210444004
oct311267500
9120282315
1052784960
1127883138
1215816a28
13ac21c07
147020704
154979ec5
hex3256f40

52784960 has 28 divisors (see below), whose sum is σ = 125694948. Its totient is φ = 21113856.

The previous prime is 52784957. The next prime is 52784969. The reversal of 52784960 is 6948725.

It can be written as a sum of positive squares in 2 ways, for example, as 21603904 + 31181056 = 4648^2 + 5584^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52784969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82157 + ... + 82796.

Almost surely, 252784960 is an apocalyptic number.

It is an amenable number.

52784960 is an abundant number, since it is smaller than the sum of its proper divisors (72909988).

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

52784960 is a wasteful number, since it uses less digits than its factorization.

52784960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164970 (or 164960 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 52784960 is about 7265.3258701864. The cubic root of 52784960 is about 375.1198668663.

The spelling of 52784960 in words is "fifty-two million, seven hundred eighty-four thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 164953 329906 659812 824765 1319624 1649530 2639248 3299060 5278496 6598120 10556992 13196240 26392480 52784960