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5320981 = 23231347
BaseRepresentation
bin10100010011000100010101
3101000100000101
4110103010111
52330232411
6310014101
763141031
oct24230425
911010011
105320981
113004806
121947331
131143c13
149c71c1
157018c1
hex513115

5320981 has 4 divisors (see below), whose sum is σ = 5552352. Its totient is φ = 5089612.

The previous prime is 5320957. The next prime is 5320999. The reversal of 5320981 is 1890235.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5320981 - 27 = 5320853 is a prime.

It is a super-2 number, since 2×53209812 = 56625677604722, 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 (5320921) 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, 115651 + ... + 115696.

It is an arithmetic number, because the mean of its divisors is an integer number (1388088).

Almost surely, 25320981 is an apocalyptic number.

It is an amenable number.

5320981 is a deficient number, since it is larger than the sum of its proper divisors (231371).

5320981 is a wasteful number, since it uses less digits than its factorization.

5320981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231370.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 5320981 is about 2306.7251678516. The cubic root of 5320981 is about 174.5811042158.

The spelling of 5320981 in words is "five million, three hundred twenty thousand, nine hundred eighty-one".

Divisors: 1 23 231347 5320981