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13221202132 = 225362364161
BaseRepresentation
bin11000101000000101…
…11000100011010100
31021010102000122202001
430110002320203110
5204034111432012
610023532125044
7645430235545
oct142402704324
937112018661
1013221202132
115675029936
12268b906784
131329170638
148d5caa4cc
15525a98357
hex3140b88d4

13221202132 has 12 divisors (see below), whose sum is σ = 23573653236. Its totient is φ = 6485872640.

The previous prime is 13221202129. The next prime is 13221202147. The reversal of 13221202132 is 23120212231.

It can be written as a sum of positive squares in 2 ways, for example, as 9269068176 + 3952133956 = 96276^2 + 62866^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31181869 + ... + 31182292.

It is an arithmetic number, because the mean of its divisors is an integer number (1964471103).

Almost surely, 213221202132 is an apocalyptic number.

It is an amenable number.

13221202132 is a deficient number, since it is larger than the sum of its proper divisors (10352451104).

13221202132 is a wasteful number, since it uses less digits than its factorization.

13221202132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62364218 (or 62364216 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13221202132 its reverse (23120212231), we get a palindrome (36341414363).

The spelling of 13221202132 in words is "thirteen billion, two hundred twenty-one million, two hundred two thousand, one hundred thirty-two".

Divisors: 1 2 4 53 106 212 62364161 124728322 249456644 3305300533 6610601066 13221202132