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5487931 = 29189239
BaseRepresentation
bin10100111011110100111011
3101022211000201
4110323310323
52401103211
6313343031
764434541
oct24736473
911284021
105487931
113109189
121a07a77
1311a1bc7
14a2bd91
157360c1
hex53bd3b

5487931 has 4 divisors (see below), whose sum is σ = 5677200. Its totient is φ = 5298664.

The previous prime is 5487929. The next prime is 5487947. The reversal of 5487931 is 1397845.

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 5487931 - 21 = 5487929 is a prime.

It is a super-2 number, since 2×54879312 = 60234773321522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5487901) 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, 94591 + ... + 94648.

It is an arithmetic number, because the mean of its divisors is an integer number (1419300).

Almost surely, 25487931 is an apocalyptic number.

5487931 is a deficient number, since it is larger than the sum of its proper divisors (189269).

5487931 is a wasteful number, since it uses less digits than its factorization.

5487931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189268.

The product of its digits is 30240, while the sum is 37.

The square root of 5487931 is about 2342.6333473252. The cubic root of 5487931 is about 176.3882077428.

The spelling of 5487931 in words is "five million, four hundred eighty-seven thousand, nine hundred thirty-one".

Divisors: 1 29 189239 5487931