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102169 = 711439
BaseRepresentation
bin11000111100011001
312012011001
4120330121
511232134
62105001
7603604
oct307431
9165131
10102169
116a841
124b161
1337672
142933b
1520414
hex18f19

102169 has 4 divisors (see below), whose sum is σ = 103680. Its totient is φ = 100660.

The previous prime is 102161. The next prime is 102181. The reversal of 102169 is 961201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102169 - 23 = 102161 is a prime.

It is a super-2 number, since 2×1021692 = 20877009122, which contains 22 as substring.

It is a Duffinian number.

102169 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (102161) 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, 649 + ... + 790.

It is an arithmetic number, because the mean of its divisors is an integer number (25920).

2102169 is an apocalyptic number.

It is an amenable number.

102169 is a deficient number, since it is larger than the sum of its proper divisors (1511).

102169 is an equidigital number, since it uses as much as digits as its factorization.

102169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 102169 is about 319.6388587140. The cubic root of 102169 is about 46.7490777364.

The spelling of 102169 in words is "one hundred two thousand, one hundred sixty-nine".

Divisors: 1 71 1439 102169