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5431189 = 18112999
BaseRepresentation
bin10100101101111110010101
3101012221012011
4110231332111
52342244224
6312224221
764110241
oct24557625
911187164
105431189
11307a595
12199b071
13118212a
14a15421
15724394
hex52df95

5431189 has 4 divisors (see below), whose sum is σ = 5436000. Its totient is φ = 5426380.

The previous prime is 5431187. The next prime is 5431219. The reversal of 5431189 is 9811345.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5431189 - 21 = 5431187 is a prime.

It is a Duffinian number.

5431189 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5431189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5431183) 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, 312 + ... + 3310.

It is an arithmetic number, because the mean of its divisors is an integer number (1359000).

Almost surely, 25431189 is an apocalyptic number.

It is an amenable number.

5431189 is a deficient number, since it is larger than the sum of its proper divisors (4811).

5431189 is a wasteful number, since it uses less digits than its factorization.

5431189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4810.

The product of its digits is 4320, while the sum is 31.

The square root of 5431189 is about 2330.4911499510. The cubic root of 5431189 is about 175.7781834533.

The spelling of 5431189 in words is "five million, four hundred thirty-one thousand, one hundred eighty-nine".

Divisors: 1 1811 2999 5431189