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16313947 = 132934283
BaseRepresentation
bin111110001110…
…111001011011
31010200211112021
4332032321123
513134021242
61341355311
7255444346
oct76167133
933624467
1016313947
119232a01
125568b37
1334c2730
14224945d
151673b67
hexf8ee5b

16313947 has 8 divisors (see below), whose sum is σ = 17632944. Its totient is φ = 15004128.

The previous prime is 16313933. The next prime is 16313953. The reversal of 16313947 is 74931361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16313947 - 215 = 16281179 is a prime.

It is a super-2 number, since 2×163139472 = 532289733437618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16313917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1668 + ... + 5950.

It is an arithmetic number, because the mean of its divisors is an integer number (2204118).

Almost surely, 216313947 is an apocalyptic number.

16313947 is a deficient number, since it is larger than the sum of its proper divisors (1318997).

16313947 is a wasteful number, since it uses less digits than its factorization.

16313947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589.

The product of its digits is 13608, while the sum is 34.

The square root of 16313947 is about 4039.0527354814. The cubic root of 16313947 is about 253.6216648241.

The spelling of 16313947 in words is "sixteen million, three hundred thirteen thousand, nine hundred forty-seven".

Divisors: 1 13 293 3809 4283 55679 1254919 16313947