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102065223 = 31316715671
BaseRepresentation
bin1100001010101…
…10010001000111
321010001110011110
412011112101013
5202112041343
614043340103
72346353151
oct605262107
9233043143
10102065223
1152682127
122a221633
13181b7830
14d7abad1
158e61833
hex6156447

102065223 has 16 divisors (see below), whose sum is σ = 147442176. Its totient is φ = 62429280.

The previous prime is 102065209. The next prime is 102065233. The reversal of 102065223 is 322560201.

It is not a de Polignac number, because 102065223 - 226 = 34956359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102065223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102065233) 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, 1323 + ... + 14348.

It is an arithmetic number, because the mean of its divisors is an integer number (9215136).

Almost surely, 2102065223 is an apocalyptic number.

102065223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102065223 is a deficient number, since it is larger than the sum of its proper divisors (45376953).

102065223 is a wasteful number, since it uses less digits than its factorization.

102065223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15854.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 102065223 is about 10102.7334419948. The cubic root of 102065223 is about 467.3324409285.

The spelling of 102065223 in words is "one hundred two million, sixty-five thousand, two hundred twenty-three".

Divisors: 1 3 13 39 167 501 2171 6513 15671 47013 203723 611169 2617057 7851171 34021741 102065223