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102215113 = 7112139283
BaseRepresentation
bin1100001011110…
…10110111001001
321010100001202221
412011322313021
5202131340423
614050454041
72350546150
oct605726711
9233301687
10102215113
1152774800
122a294321
131823ab20
14d80a597
158e90e5d
hex617adc9

102215113 has 24 divisors (see below), whose sum is σ = 138294464. Its totient is φ = 73513440.

The previous prime is 102215063. The next prime is 102215119. The reversal of 102215113 is 311512201.

It is a de Polignac number, because none of the positive numbers 2k-102215113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102215119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6370 + ... + 15652.

Almost surely, 2102215113 is an apocalyptic number.

102215113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

102215113 is a deficient number, since it is larger than the sum of its proper divisors (36079351).

102215113 is a wasteful number, since it uses less digits than its factorization.

102215113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9325 (or 9314 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 102215113 is about 10110.1490097822. The cubic root of 102215113 is about 467.5610992808.

Adding to 102215113 its reverse (311512201), we get a palindrome (413727314).

The spelling of 102215113 in words is "one hundred two million, two hundred fifteen thousand, one hundred thirteen".

Divisors: 1 7 11 13 77 91 121 143 847 1001 1573 9283 11011 64981 102113 120679 714791 844753 1123243 1327469 7862701 9292283 14602159 102215113