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113200143 = 372770069
BaseRepresentation
bin1101011111101…
…00110000001111
321220000011101220
412233310300033
5212434401033
615122134423
72543120400
oct657646017
9256004356
10113200143
1158997a41
1231ab1413
131a5b5b44
14110699a7
159e10bb3
hex6bf4c0f

113200143 has 12 divisors (see below), whose sum is σ = 175575960. Its totient is φ = 64685712.

The previous prime is 113200141. The next prime is 113200147. The reversal of 113200143 is 341002311.

It is not a de Polignac number, because 113200143 - 21 = 113200141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113200141) 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, 384888 + ... + 385181.

It is an arithmetic number, because the mean of its divisors is an integer number (14631330).

Almost surely, 2113200143 is an apocalyptic number.

113200143 is a deficient number, since it is larger than the sum of its proper divisors (62375817).

113200143 is an equidigital number, since it uses as much as digits as its factorization.

113200143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770086 (or 770079 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 113200143 is about 10639.5555828239. Note that the first 4 decimals coincide. The cubic root of 113200143 is about 483.7440747360.

Adding to 113200143 its reverse (341002311), we get a palindrome (454202454).

The spelling of 113200143 in words is "one hundred thirteen million, two hundred thousand, one hundred forty-three".

Divisors: 1 3 7 21 49 147 770069 2310207 5390483 16171449 37733381 113200143