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20431022204 = 2239712865883
BaseRepresentation
bin10011000001110010…
…001010100001111100
31221201212120110120002
4103001302022201330
5313320320202304
613215203413432
71322204552255
oct230162124174
957655513502
1020431022204
11873486341a
123b62384278
131c07a8b568
14dbb643b2c
157e8a0b31e
hex4c1c8a87c

20431022204 has 12 divisors (see below), whose sum is σ = 35844352824. Its totient is φ = 10189778544.

The previous prime is 20431022201. The next prime is 20431022207. The reversal of 20431022204 is 40222013402.

It is an interprime number because it is at equal distance from previous prime (20431022201) and next prime (20431022207).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431022201) 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, 6431354 + ... + 6434529.

It is an arithmetic number, because the mean of its divisors is an integer number (2987029402).

Almost surely, 220431022204 is an apocalyptic number.

It is an amenable number.

20431022204 is a deficient number, since it is larger than the sum of its proper divisors (15413330620).

20431022204 is a wasteful number, since it uses less digits than its factorization.

20431022204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12866284 (or 12866282 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20431022204 its reverse (40222013402), we get a palindrome (60653035606).

The spelling of 20431022204 in words is "twenty billion, four hundred thirty-one million, twenty-two thousand, two hundred four".

Divisors: 1 2 4 397 794 1588 12865883 25731766 51463532 5107755551 10215511102 20431022204