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20102332245 = 352234359981
BaseRepresentation
bin10010101110001100…
…010011111101010101
31220212222002021200220
4102232030103331111
5312132144112440
613122422424553
71311104001432
oct225614237525
956788067626
1020102332245
118586273826
123a90292159
131b84956b68
14d89b22b89
157c9c318d0
hex4ae313f55

20102332245 has 16 divisors (see below), whose sum is σ = 32165707392. Its totient is φ = 10720585280.

The previous prime is 20102332157. The next prime is 20102332273. The reversal of 20102332245 is 54223320102.

It is a de Polignac number, because none of the positive numbers 2k-20102332245 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305155 + ... + 365135.

It is an arithmetic number, because the mean of its divisors is an integer number (2010356712).

Almost surely, 220102332245 is an apocalyptic number.

It is an amenable number.

20102332245 is a deficient number, since it is larger than the sum of its proper divisors (12063375147).

20102332245 is a wasteful number, since it uses less digits than its factorization.

20102332245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82332.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 20102332245 its reverse (54223320102), we get a palindrome (74325652347).

The spelling of 20102332245 in words is "twenty billion, one hundred two million, three hundred thirty-two thousand, two hundred forty-five".

Divisors: 1 3 5 15 22343 59981 67029 111715 179943 299905 335145 899715 1340155483 4020466449 6700777415 20102332245