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16313477 = 88118517
BaseRepresentation
bin111110001110…
…110010000101
31010200210212212
4332032302011
513134012402
61341353205
7255443105
oct76166205
933623785
1016313477
119232614
125568805
1334c245b
142249205
151673952
hexf8ec85

16313477 has 4 divisors (see below), whose sum is σ = 16332876. Its totient is φ = 16294080.

The previous prime is 16313459. The next prime is 16313483. The reversal of 16313477 is 77431361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77431361 = 711061623.

It can be written as a sum of positive squares in 2 ways, for example, as 3682561 + 12630916 = 1919^2 + 3554^2 .

It is a cyclic number.

It is not a de Polignac number, because 16313477 - 28 = 16313221 is a prime.

It is a super-2 number, since 2×163134772 = 532259063659058, 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 (16313447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8378 + ... + 10139.

It is an arithmetic number, because the mean of its divisors is an integer number (4083219).

Almost surely, 216313477 is an apocalyptic number.

It is an amenable number.

16313477 is a deficient number, since it is larger than the sum of its proper divisors (19399).

16313477 is an equidigital number, since it uses as much as digits as its factorization.

16313477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19398.

The product of its digits is 10584, while the sum is 32.

The square root of 16313477 is about 4038.9945531035. The cubic root of 16313477 is about 253.6192292123.

The spelling of 16313477 in words is "sixteen million, three hundred thirteen thousand, four hundred seventy-seven".

Divisors: 1 881 18517 16313477