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20101031312322 = 2319176324836073
BaseRepresentation
bin1001001001000001000101…
…10101001011101111000010
32122011122021102200221110010
410210200202311023233002
510113313403003443242
6110430141501445350
74143152203013562
oct444404265135702
978148242627403
1020101031312322
11644a888163374
12230786a870856
13b2a699674a4c
144d6c7625ada2
1524cd198d989c
hex124822d4bbc2

20101031312322 has 16 divisors (see below), whose sum is σ = 42317960657760. Its totient is φ = 6347694098592.

The previous prime is 20101031312321. The next prime is 20101031312333. The reversal of 20101031312322 is 22321313010102.

It is not an unprimeable number, because it can be changed into a prime (20101031312321) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 88162417923 + ... + 88162418150.

It is an arithmetic number, because the mean of its divisors is an integer number (2644872541110).

Almost surely, 220101031312322 is an apocalyptic number.

20101031312322 is an abundant number, since it is smaller than the sum of its proper divisors (22216929345438).

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

20101031312322 is a wasteful number, since it uses less digits than its factorization.

20101031312322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176324836097.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20101031312322 its reverse (22321313010102), we get a palindrome (42422344322424).

The spelling of 20101031312322 in words is "twenty trillion, one hundred one billion, thirty-one million, three hundred twelve thousand, three hundred twenty-two".

Divisors: 1 2 3 6 19 38 57 114 176324836073 352649672146 528974508219 1057949016438 3350171885387 6700343770774 10050515656161 20101031312322