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5231087 = 17307711
BaseRepresentation
bin10011111101000111101111
3100211202200222
4103331013233
52314343322
6304041555
762314661
oct23750757
910752628
105231087
112a53214
1219032bb
131112024
149a2531
156d4e42
hex4fd1ef

5231087 has 4 divisors (see below), whose sum is σ = 5538816. Its totient is φ = 4923360.

The previous prime is 5231077. The next prime is 5231089. The reversal of 5231087 is 7801325.

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 5231087 - 28 = 5230831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5231089) 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, 153839 + ... + 153872.

It is an arithmetic number, because the mean of its divisors is an integer number (1384704).

Almost surely, 25231087 is an apocalyptic number.

5231087 is a deficient number, since it is larger than the sum of its proper divisors (307729).

5231087 is a wasteful number, since it uses less digits than its factorization.

5231087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307728.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 5231087 is about 2287.1569688152. The cubic root of 5231087 is about 173.5923760694.

The spelling of 5231087 in words is "five million, two hundred thirty-one thousand, eighty-seven".

Divisors: 1 17 307711 5231087