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20100122322 = 2372611120783
BaseRepresentation
bin10010101110000011…
…111000011011010010
31220212210221000020220
4102232003320123102
5312131112403242
613122303213510
71311046135500
oct225603703322
956783830226
1020100122322
118584aa4445
123a8b5a7296
131b84362007
14d89709670
157c9946bec
hex4ae0f86d2

20100122322 has 48 divisors (see below), whose sum is σ = 47530207872. Its totient is φ = 5648741280.

The previous prime is 20100122321. The next prime is 20100122347. The reversal of 20100122322 is 22322100102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20100122321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 542458 + ... + 578325.

It is an arithmetic number, because the mean of its divisors is an integer number (990212664).

Almost surely, 220100122322 is an apocalyptic number.

20100122322 is an abundant number, since it is smaller than the sum of its proper divisors (27430085550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20100122322 is a wasteful number, since it uses less digits than its factorization.

20100122322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120863 (or 1120856 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20100122322 its reverse (22322100102), we get a palindrome (42422222424).

The spelling of 20100122322 in words is "twenty billion, one hundred million, one hundred twenty-two thousand, three hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 49 61 98 122 147 183 294 366 427 854 1281 2562 2989 5978 8967 17934 1120783 2241566 3362349 6724698 7845481 15690962 23536443 47072886 54918367 68367763 109836734 136735526 164755101 205103289 329510202 410206578 478574341 957148682 1435723023 2871446046 3350020387 6700040774 10050061161 20100122322