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102219 = 3132621
BaseRepresentation
bin11000111101001011
312012012220
4120331023
511232334
62105123
7604005
oct307513
9165186
10102219
116a887
124b1a3
13376b0
1429375
1520449
hex18f4b

102219 has 8 divisors (see below), whose sum is σ = 146832. Its totient is φ = 62880.

The previous prime is 102217. The next prime is 102229. The reversal of 102219 is 912201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102219 - 21 = 102217 is a prime.

It is a super-2 number, since 2×1022192 = 20897447922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102198 and 102207.

It is not an unprimeable number, because it can be changed into a prime (102217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1272 + ... + 1349.

It is an arithmetic number, because the mean of its divisors is an integer number (18354).

2102219 is an apocalyptic number.

102219 is a deficient number, since it is larger than the sum of its proper divisors (44613).

102219 is a wasteful number, since it uses less digits than its factorization.

102219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 102219 is about 319.7170624161. The cubic root of 102219 is about 46.7567025955.

The spelling of 102219 in words is "one hundred two thousand, two hundred nineteen".

Divisors: 1 3 13 39 2621 7863 34073 102219