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20323102132 = 2217298869149
BaseRepresentation
bin10010111011010110…
…011110110110110100
31221110100111120001101
4102323112132312310
5313110203232012
613200350335444
71316424342424
oct227326366664
957410446041
1020323102132
118689952483
123b321ba584
131bbb603b28
14dab190484
157de2ded57
hex4bb59edb4

20323102132 has 12 divisors (see below), whose sum is σ = 37657512900. Its totient is φ = 9563812736.

The previous prime is 20323102099. The next prime is 20323102139. The reversal of 20323102132 is 23120132302.

It can be written as a sum of positive squares in 2 ways, for example, as 15501744036 + 4821358096 = 124506^2 + 69436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323102139) 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, 149434507 + ... + 149434642.

It is an arithmetic number, because the mean of its divisors is an integer number (3138126075).

Almost surely, 220323102132 is an apocalyptic number.

It is an amenable number.

20323102132 is a deficient number, since it is larger than the sum of its proper divisors (17334410768).

20323102132 is a wasteful number, since it uses less digits than its factorization.

20323102132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298869170 (or 298869168 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20323102132 its reverse (23120132302), we get a palindrome (43443234434).

The spelling of 20323102132 in words is "twenty billion, three hundred twenty-three million, one hundred two thousand, one hundred thirty-two".

Divisors: 1 2 4 17 34 68 298869149 597738298 1195476596 5080775533 10161551066 20323102132