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113620686 = 2318936781
BaseRepresentation
bin1101100010110…
…11011011001110
321220210112021120
412301123123032
5213041330221
615135141410
72546521434
oct661333316
9256715246
10113620686
11591549a3
1232074866
131a70239a
1411138d54
159e955c6
hex6c5b6ce

113620686 has 8 divisors (see below), whose sum is σ = 227241384. Its totient is φ = 37873560.

The previous prime is 113620681. The next prime is 113620687. The reversal of 113620686 is 686026311.

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

113620686 is an admirable number.

It is a super-2 number, since 2×1136206862 = 25819320574221192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113620681) 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, 9468385 + ... + 9468396.

It is an arithmetic number, because the mean of its divisors is an integer number (28405173).

Almost surely, 2113620686 is an apocalyptic number.

113620686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113620686 is a wasteful number, since it uses less digits than its factorization.

113620686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18936786.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 113620686 is about 10659.3004460893. The cubic root of 113620686 is about 484.3423772188.

Adding to 113620686 its reverse (686026311), we get a palindrome (799646997).

Subtracting 113620686 from its reverse (686026311), we obtain a square (572405625 = 239252).

The spelling of 113620686 in words is "one hundred thirteen million, six hundred twenty thousand, six hundred eighty-six".

Divisors: 1 2 3 6 18936781 37873562 56810343 113620686