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323112620 = 22516155631
BaseRepresentation
bin10011010000100…
…100111010101100
3211111222211012002
4103100210322230
51130204100440
652021231432
711002261205
oct2320447254
9744884162
10323112620
11156430326
1290262578
1351c30bcc
1430cac5ac
151d577115
hex13424eac

323112620 has 12 divisors (see below), whose sum is σ = 678536544. Its totient is φ = 129245040.

The previous prime is 323112617. The next prime is 323112623. The reversal of 323112620 is 26211323.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (323112617) and next prime (323112623).

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 16155631 = 323112620 / (3 + 2 + 3 + 1 + 1 + 2 + 6 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 323112592 and 323112601.

It is not an unprimeable number, because it can be changed into a prime (323112623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8077796 + ... + 8077835.

It is an arithmetic number, because the mean of its divisors is an integer number (56544712).

Almost surely, 2323112620 is an apocalyptic number.

It is an amenable number.

323112620 is an abundant number, since it is smaller than the sum of its proper divisors (355423924).

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

323112620 is a wasteful number, since it uses less digits than its factorization.

323112620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16155640 (or 16155638 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 323112620 is about 17975.3336547615. Note that the first 3 decimals coincide. The cubic root of 323112620 is about 686.2009373210.

Adding to 323112620 its reverse (26211323), we get a palindrome (349323943).

It can be divided in two parts, 3231 and 12620, that added together give a palindrome (15851).

The spelling of 323112620 in words is "three hundred twenty-three million, one hundred twelve thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 16155631 32311262 64622524 80778155 161556310 323112620