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113829143 = 179635917
BaseRepresentation
bin1101100100011…
…10010100010111
321221012010020012
412302032110113
5213120013033
615143430435
72551350251
oct662162427
9257163205
10113829143
115928757a
123215541b
131a77622c
1411190cd1
159ed7248
hex6c8e517

113829143 has 4 divisors (see below), whose sum is σ = 114465240. Its totient is φ = 113193048.

The previous prime is 113829137. The next prime is 113829151. The reversal of 113829143 is 341928311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341928311 = 3071113773.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-113829143 is a prime.

It is a super-2 number, since 2×1138291432 = 25914147592228898, 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 (113829173) 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, 317780 + ... + 318137.

It is an arithmetic number, because the mean of its divisors is an integer number (28616310).

Almost surely, 2113829143 is an apocalyptic number.

113829143 is a deficient number, since it is larger than the sum of its proper divisors (636097).

113829143 is an equidigital number, since it uses as much as digits as its factorization.

113829143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636096.

The product of its digits is 5184, while the sum is 32.

The square root of 113829143 is about 10669.0741397743. The cubic root of 113829143 is about 484.6383998288.

The spelling of 113829143 in words is "one hundred thirteen million, eight hundred twenty-nine thousand, one hundred forty-three".

Divisors: 1 179 635917 113829143