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312223102223 = 696744814569
BaseRepresentation
bin1001000101100011111…
…00100111010100001111
31002211220100211221210212
410202301330213110033
520103413103232343
6355233332353035
731362115403024
oct4426174472417
91084810757725
10312223102223
1111045a88a97a
1250616a7577b
132359a278b86
141117c63754b
1581c57edc18
hex48b1f2750f

312223102223 has 4 divisors (see below), whose sum is σ = 312267923760. Its totient is φ = 312178280688.

The previous prime is 312223102199. The next prime is 312223102231. The reversal of 312223102223 is 322201322213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312223102223 - 26 = 312223102159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312223102423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22400318 + ... + 22414251.

It is an arithmetic number, because the mean of its divisors is an integer number (78066980940).

Almost surely, 2312223102223 is an apocalyptic number.

312223102223 is a deficient number, since it is larger than the sum of its proper divisors (44821537).

312223102223 is an equidigital number, since it uses as much as digits as its factorization.

312223102223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44821536.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 312223102223 its reverse (322201322213), we get a palindrome (634424424436).

The spelling of 312223102223 in words is "three hundred twelve billion, two hundred twenty-three million, one hundred two thousand, two hundred twenty-three".

Divisors: 1 6967 44814569 312223102223