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16144379 = 60726597
BaseRepresentation
bin111101100101…
…011111111011
31010101012220222
4331211133323
513113110004
61334010255
7254140106
oct75453773
933335828
1016144379
119127569
1254a698b
1334634b4
14220373d
15163d7be
hexf657fb

16144379 has 4 divisors (see below), whose sum is σ = 16171584. Its totient is φ = 16117176.

The previous prime is 16144369. The next prime is 16144399. The reversal of 16144379 is 97344161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97344161 = 521186841.

It is a cyclic number.

It is not a de Polignac number, because 16144379 - 24 = 16144363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16144369) 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, 12692 + ... + 13905.

It is an arithmetic number, because the mean of its divisors is an integer number (4042896).

Almost surely, 216144379 is an apocalyptic number.

16144379 is a deficient number, since it is larger than the sum of its proper divisors (27205).

16144379 is an equidigital number, since it uses as much as digits as its factorization.

16144379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27204.

The product of its digits is 18144, while the sum is 35.

The square root of 16144379 is about 4018.0068441953. The cubic root of 16144379 is about 252.7398837836.

The spelling of 16144379 in words is "sixteen million, one hundred forty-four thousand, three hundred seventy-nine".

Divisors: 1 607 26597 16144379