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113113143 = 321113179491
BaseRepresentation
bin1101011110111…
…11100000110111
321212211202001200
412233133200313
5212424110033
615120223543
72542305633
oct657374067
9255752050
10113113143
1158938640
1231a6abb3
131a585370
1411045dc3
159de5013
hex6bdf837

113113143 has 48 divisors (see below), whose sum is σ = 193415040. Its totient is φ = 62798400.

The previous prime is 113113123. The next prime is 113113157. The reversal of 113113143 is 341311311.

It is a de Polignac number, because none of the positive numbers 2k-113113143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113113123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 230128 + ... + 230618.

It is an arithmetic number, because the mean of its divisors is an integer number (4029480).

Almost surely, 2113113143 is an apocalyptic number.

113113143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

113113143 is a deficient number, since it is larger than the sum of its proper divisors (80301897).

113113143 is a wasteful number, since it uses less digits than its factorization.

113113143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 697 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 113113143 is about 10635.4662803283. The cubic root of 113113143 is about 483.6201157619.

Adding to 113113143 its reverse (341311311), we get a palindrome (454424454).

The spelling of 113113143 in words is "one hundred thirteen million, one hundred thirteen thousand, one hundred forty-three".

Divisors: 1 3 9 11 13 33 39 99 117 143 179 429 491 537 1287 1473 1611 1969 2327 4419 5401 5907 6383 6981 16203 17721 19149 20943 25597 48609 57447 70213 76791 87889 210639 230373 263667 631917 791001 966779 1142557 2900337 3427671 8701011 10283013 12568127 37704381 113113143