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5211887 = 40912743
BaseRepresentation
bin10011111000011011101111
3100210210100212
4103320123233
52313240022
6303413035
762205002
oct23703357
910723325
105211887
112a3a84a
1218b417b
131106375
14999539
156ce3e2
hex4f86ef

5211887 has 4 divisors (see below), whose sum is σ = 5225040. Its totient is φ = 5198736.

The previous prime is 5211881. The next prime is 5211919. The reversal of 5211887 is 7881125.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5211887 - 28 = 5211631 is a prime.

It is a super-2 number, since 2×52118872 = 54327532201538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5211881) 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, 5963 + ... + 6780.

It is an arithmetic number, because the mean of its divisors is an integer number (1306260).

Almost surely, 25211887 is an apocalyptic number.

5211887 is a deficient number, since it is larger than the sum of its proper divisors (13153).

5211887 is a wasteful number, since it uses less digits than its factorization.

5211887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13152.

The product of its digits is 4480, while the sum is 32.

The square root of 5211887 is about 2282.9557595363. The cubic root of 5211887 is about 173.3797332223.

The spelling of 5211887 in words is "five million, two hundred eleven thousand, eight hundred eighty-seven".

Divisors: 1 409 12743 5211887