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52878499 = 732113433
BaseRepresentation
bin1100100110110…
…1110010100011
310200111111122221
43021231302203
5102014102444
65125211511
71211313502
oct311556243
9120444587
1052878499
1127937443
1215860b97
13ac5566b
147046839
154997a84
hex326dca3

52878499 has 8 divisors (see below), whose sum is σ = 53872592. Its totient is φ = 51891840.

The previous prime is 52878493. The next prime is 52878523. The reversal of 52878499 is 99487825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52878499 - 23 = 52878491 is a prime.

It is a super-2 number, since 2×528784992 = 5592271312986002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52878491) 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, 13687 + ... + 17119.

It is an arithmetic number, because the mean of its divisors is an integer number (6734074).

Almost surely, 252878499 is an apocalyptic number.

52878499 is a deficient number, since it is larger than the sum of its proper divisors (994093).

52878499 is a wasteful number, since it uses less digits than its factorization.

52878499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3717.

The product of its digits is 1451520, while the sum is 52.

The square root of 52878499 is about 7271.7603783403. The cubic root of 52878499 is about 375.3413165065.

The spelling of 52878499 in words is "fifty-two million, eight hundred seventy-eight thousand, four hundred ninety-nine".

Divisors: 1 73 211 3433 15403 250609 724363 52878499