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102269 = 313299
BaseRepresentation
bin11000111101111101
312012021202
4120331331
511233034
62105245
7604106
oct307575
9165252
10102269
116a922
124b225
133771b
14293ad
152047e
hex18f7d

102269 has 4 divisors (see below), whose sum is σ = 105600. Its totient is φ = 98940.

The previous prime is 102259. The next prime is 102293. The reversal of 102269 is 962201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 962201 = 6011601.

It is a cyclic number.

It is not a de Polignac number, because 102269 - 24 = 102253 is a prime.

It is a super-2 number, since 2×1022692 = 20917896722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102229) 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, 1619 + ... + 1680.

It is an arithmetic number, because the mean of its divisors is an integer number (26400).

2102269 is an apocalyptic number.

It is an amenable number.

102269 is a deficient number, since it is larger than the sum of its proper divisors (3331).

102269 is an equidigital number, since it uses as much as digits as its factorization.

102269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 102269 is about 319.7952469941. The cubic root of 102269 is about 46.7643249685.

The spelling of 102269 in words is "one hundred two thousand, two hundred sixty-nine".

Divisors: 1 31 3299 102269