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101868613 = 71113110099
BaseRepresentation
bin1100001001001…
…10010001000101
321002200110110121
412010212101011
5202034243423
614035221541
72344604020
oct604462105
9232613417
10101868613
1152558440
122a1478b1
13181491b2
14d75a1b7
158e2345d
hex6126445

101868613 has 16 divisors (see below), whose sum is σ = 127987200. Its totient is φ = 78764400.

The previous prime is 101868577. The next prime is 101868617. The reversal of 101868613 is 316868101.

It is not a de Polignac number, because 101868613 - 221 = 99771461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101868617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5038 + ... + 15136.

It is an arithmetic number, because the mean of its divisors is an integer number (7999200).

Almost surely, 2101868613 is an apocalyptic number.

It is an amenable number.

101868613 is a deficient number, since it is larger than the sum of its proper divisors (26118587).

101868613 is a wasteful number, since it uses less digits than its factorization.

101868613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10248.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 101868613 is about 10092.9982165856. The cubic root of 101868613 is about 467.0321711930.

The spelling of 101868613 in words is "one hundred one million, eight hundred sixty-eight thousand, six hundred thirteen".

Divisors: 1 7 11 77 131 917 1441 10087 10099 70693 111089 777623 1322969 9260783 14552659 101868613