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132102209 = 163810443
BaseRepresentation
bin1111101111110…
…11100001000001
3100012120111011102
413313323201001
5232304232314
621035224145
73162564431
oct767734101
9305514142
10132102209
1168628388
12382a8055
13214a35b5
141378a2c1
15b8e65de
hex7dfb841

132102209 has 4 divisors (see below), whose sum is σ = 132912816. Its totient is φ = 131291604.

The previous prime is 132102203. The next prime is 132102211. The reversal of 132102209 is 902201231.

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 a de Polignac number, because none of the positive numbers 2k-132102209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132102203) 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, 405059 + ... + 405384.

It is an arithmetic number, because the mean of its divisors is an integer number (33228204).

Almost surely, 2132102209 is an apocalyptic number.

It is an amenable number.

132102209 is a deficient number, since it is larger than the sum of its proper divisors (810607).

132102209 is an equidigital number, since it uses as much as digits as its factorization.

132102209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810606.

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

The square root of 132102209 is about 11493.5725081456. The cubic root of 132102209 is about 509.2957201768.

The spelling of 132102209 in words is "one hundred thirty-two million, one hundred two thousand, two hundred nine".

Divisors: 1 163 810443 132102209