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5212891 = 7173421
BaseRepresentation
bin10011111000101011011011
3100210211202001
4103320223123
52313303031
6303421431
762210635
oct23705333
910724661
105212891
112a40582
1218b4877
131106968
14999a55
156ce861
hex4f8adb

5212891 has 4 divisors (see below), whose sum is σ = 5286384. Its totient is φ = 5139400.

The previous prime is 5212873. The next prime is 5212901. The reversal of 5212891 is 1982125.

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 5212891 - 217 = 5081819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5212811) 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, 36640 + ... + 36781.

It is an arithmetic number, because the mean of its divisors is an integer number (1321596).

Almost surely, 25212891 is an apocalyptic number.

5212891 is a deficient number, since it is larger than the sum of its proper divisors (73493).

5212891 is an equidigital number, since it uses as much as digits as its factorization.

5212891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73492.

The product of its digits is 1440, while the sum is 28.

The square root of 5212891 is about 2283.1756393234. The cubic root of 5212891 is about 173.3908655995.

The spelling of 5212891 in words is "five million, two hundred twelve thousand, eight hundred ninety-one".

Divisors: 1 71 73421 5212891