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20123110322 = 272591554753
BaseRepresentation
bin10010101111011011…
…100100101110110010
31220221102011220212022
4102233123210232302
5312203004012242
613124444031442
71311445421060
oct225733445662
956842156768
1020123110322
118596a75697
123a97232582
131b89050493
14d8c7b1030
157cb9880d2
hex4af6e4bb2

20123110322 has 16 divisors (see below), whose sum is σ = 34510136832. Its totient is φ = 8620846080.

The previous prime is 20123110283. The next prime is 20123110363. The reversal of 20123110322 is 22301132102.

It is a self number, because there is not a number n which added to its sum of digits gives 20123110322.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241103 + ... + 313650.

It is an arithmetic number, because the mean of its divisors is an integer number (2156883552).

Almost surely, 220123110322 is an apocalyptic number.

20123110322 is a deficient number, since it is larger than the sum of its proper divisors (14387026510).

20123110322 is a wasteful number, since it uses less digits than its factorization.

20123110322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557353.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20123110322 its reverse (22301132102), we get a palindrome (42424242424).

The spelling of 20123110322 in words is "twenty billion, one hundred twenty-three million, one hundred ten thousand, three hundred twenty-two".

Divisors: 1 2 7 14 2591 5182 18137 36274 554753 1109506 3883271 7766542 1437365023 2874730046 10061555161 20123110322