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102213109 = 472638269
BaseRepresentation
bin1100001011110…
…10010111110101
321010022222000201
412011322113311
5202131304414
614050440501
72350540255
oct605722765
9233288021
10102213109
1152773249
122a293131
1318239c3b
14d809965
158e90574
hex617a5f5

102213109 has 8 divisors (see below), whose sum is σ = 104797440. Its totient is φ = 99645936.

The previous prime is 102213101. The next prime is 102213113. The reversal of 102213109 is 901312201.

102213109 = T2062 + T2063 + ... + T2108.

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

It is a cyclic number.

It is not a de Polignac number, because 102213109 - 23 = 102213101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102213101) 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, 8227 + ... + 16495.

It is an arithmetic number, because the mean of its divisors is an integer number (13099680).

Almost surely, 2102213109 is an apocalyptic number.

It is an amenable number.

102213109 is a deficient number, since it is larger than the sum of its proper divisors (2584331).

102213109 is an equidigital number, since it uses as much as digits as its factorization.

102213109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8579.

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

The square root of 102213109 is about 10110.0499009649. The cubic root of 102213109 is about 467.5580436382.

The spelling of 102213109 in words is "one hundred two million, two hundred thirteen thousand, one hundred nine".

Divisors: 1 47 263 8269 12361 388643 2174747 102213109