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113125105 = 5109207569
BaseRepresentation
bin1101011111000…
…10011011110001
321212212100110201
412233202123301
5212430000410
615120355201
72542355542
oct657423361
9255770421
10113125105
1158946625
1231a75b01
131a58a942
141104a4c9
159de883a
hex6be26f1

113125105 has 8 divisors (see below), whose sum is σ = 136996200. Its totient is φ = 89669376.

The previous prime is 113125093. The next prime is 113125127. The reversal of 113125105 is 501521311.

It can be written as a sum of positive squares in 4 ways, for example, as 16378209 + 96746896 = 4047^2 + 9836^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113125105 - 25 = 113125073 is a prime.

It is a super-2 number, since 2×1131251052 = 25594578762522050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103240 + ... + 104329.

It is an arithmetic number, because the mean of its divisors is an integer number (17124525).

Almost surely, 2113125105 is an apocalyptic number.

It is an amenable number.

113125105 is a deficient number, since it is larger than the sum of its proper divisors (23871095).

113125105 is a wasteful number, since it uses less digits than its factorization.

113125105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207683.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 113125105 is about 10636.0286291454. The cubic root of 113125105 is about 483.6371631764.

Adding to 113125105 its reverse (501521311), we get a palindrome (614646416).

The spelling of 113125105 in words is "one hundred thirteen million, one hundred twenty-five thousand, one hundred five".

Divisors: 1 5 109 545 207569 1037845 22625021 113125105