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31013222300 = 2252310132223
BaseRepresentation
bin11100111000100010…
…000011011110011100
32222001100211221001222
4130320202003132130
51002003341103200
622125224552512
72145352016504
oct347042033634
988040757058
1031013222300
1112175178a35
126016322738
132c03281718
141702c38a04
15c17a6cd85
hex73888379c

31013222300 has 18 divisors (see below), whose sum is σ = 67298692608. Its totient is φ = 12405288880.

The previous prime is 31013222269. The next prime is 31013222389. The reversal of 31013222300 is 322231013.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 155066012 + ... + 155066211.

It is an arithmetic number, because the mean of its divisors is an integer number (3738816256).

Almost surely, 231013222300 is an apocalyptic number.

It is an amenable number.

31013222300 is an abundant number, since it is smaller than the sum of its proper divisors (36285470308).

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

31013222300 is a wasteful number, since it uses less digits than its factorization.

31013222300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310132237 (or 310132230 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31013222300 its reverse (322231013), we get a palindrome (31335453313).

The spelling of 31013222300 in words is "thirty-one billion, thirteen million, two hundred twenty-two thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 310132223 620264446 1240528892 1550661115 3101322230 6202644460 7753305575 15506611150 31013222300