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52580409 = 3741173353
BaseRepresentation
bin1100100010010…
…1000000111001
310122221100202120
43020211000321
5101430033114
65114551453
71205632440
oct310450071
9118840676
1052580409
1127753492
1215738589
13ab7ca8b
146da9d57
1549395a9
hex3225039

52580409 has 32 divisors (see below), whose sum is σ = 82785024. Its totient is φ = 29061120.

The previous prime is 52580389. The next prime is 52580419. The reversal of 52580409 is 90408525.

It is not a de Polignac number, because 52580409 - 28 = 52580153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52580409.

It is not an unprimeable number, because it can be changed into a prime (52580419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148777 + ... + 149129.

It is an arithmetic number, because the mean of its divisors is an integer number (2587032).

Almost surely, 252580409 is an apocalyptic number.

It is an amenable number.

52580409 is a deficient number, since it is larger than the sum of its proper divisors (30204615).

52580409 is a wasteful number, since it uses less digits than its factorization.

52580409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 52580409 is about 7251.2349982606. The cubic root of 52580409 is about 374.6346877964.

The spelling of 52580409 in words is "fifty-two million, five hundred eighty thousand, four hundred nine".

Divisors: 1 3 7 21 41 123 173 287 353 519 861 1059 1211 2471 3633 7093 7413 14473 21279 43419 49651 61069 101311 148953 183207 303933 427483 1282449 2503829 7511487 17526803 52580409