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13143299 = 13283937
BaseRepresentation
bin110010001000…
…110100000011
3220201202012212
4302020310003
511331041144
61145412335
7216500441
oct62106403
926652185
1013143299
117467834
12449a0ab
132952500
141a61b91
15124949e
hexc88d03

13143299 has 12 divisors (see below), whose sum is σ = 14418936. Its totient is φ = 11973312.

The previous prime is 13143289. The next prime is 13143301. The reversal of 13143299 is 99234131.

It is not a de Polignac number, because 13143299 - 28 = 13143043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13143239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13559 + ... + 14495.

It is an arithmetic number, because the mean of its divisors is an integer number (1201578).

Almost surely, 213143299 is an apocalyptic number.

13143299 is a deficient number, since it is larger than the sum of its proper divisors (1275637).

13143299 is an equidigital number, since it uses as much as digits as its factorization.

13143299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046 (or 1033 counting only the distinct ones).

The product of its digits is 5832, while the sum is 32.

The square root of 13143299 is about 3625.3688088248. The cubic root of 13143299 is about 235.9942723402.

The spelling of 13143299 in words is "thirteen million, one hundred forty-three thousand, two hundred ninety-nine".

Divisors: 1 13 83 169 937 1079 12181 14027 77771 158353 1011023 13143299