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312013203223 = 457937728647
BaseRepresentation
bin1001000101001010110…
…11111010011100010111
31002211100201212222111211
410202211123322130113
520103000340000343
6355200433442251
731353656316421
oct4424533723427
91084321788454
10312013203223
11110362356727
1250578710387
1323565936c97
141115c7d9811
1581b218b79d
hex48a56fa717

312013203223 has 8 divisors (see below), whose sum is σ = 313030095392. Its totient is φ = 310997771136.

The previous prime is 312013203199. The next prime is 312013203247. The reversal of 312013203223 is 322302310213.

It is an interprime number because it is at equal distance from previous prime (312013203199) and next prime (312013203247).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312013203223 - 25 = 312013203191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312013203194 and 312013203203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312013203923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63886 + ... + 792532.

It is an arithmetic number, because the mean of its divisors is an integer number (39128761924).

Almost surely, 2312013203223 is an apocalyptic number.

312013203223 is a deficient number, since it is larger than the sum of its proper divisors (1016892169).

312013203223 is an equidigital number, since it uses as much as digits as its factorization.

312013203223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730041.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 312013203223 its reverse (322302310213), we get a palindrome (634315513436).

The spelling of 312013203223 in words is "three hundred twelve billion, thirteen million, two hundred three thousand, two hundred twenty-three".

Divisors: 1 457 937 428209 728647 332991679 682742239 312013203223