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102061115 = 5131792363
BaseRepresentation
bin1100001010101…
…01010000111011
321010001020112022
412011111100323
5202111423430
614043305055
72346335162
oct605252073
9233036468
10102061115
115267a032
122a21b18b
13181b59c0
14d7aa3d9
158e604e5
hex615543b

102061115 has 16 divisors (see below), whose sum is σ = 139654368. Its totient is φ = 70934016.

The previous prime is 102061109. The next prime is 102061129. The reversal of 102061115 is 511160201.

It is a cyclic number.

It is not a de Polignac number, because 102061115 - 28 = 102060859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102061093 and 102061102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45077 + ... + 47286.

It is an arithmetic number, because the mean of its divisors is an integer number (8728398).

Almost surely, 2102061115 is an apocalyptic number.

102061115 is a deficient number, since it is larger than the sum of its proper divisors (37593253).

102061115 is a wasteful number, since it uses less digits than its factorization.

102061115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92398.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 102061115 is about 10102.5301286361. The cubic root of 102061115 is about 467.3261709919.

The spelling of 102061115 in words is "one hundred two million, sixty-one thousand, one hundred fifteen".

Divisors: 1 5 13 17 65 85 221 1105 92363 461815 1200719 1570171 6003595 7850855 20412223 102061115