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2312312303 = 72297322291
BaseRepresentation
bin1000100111010011…
…0001010111101111
312222011000122011102
42021310301113233
514213422443203
61021240513315
7111205221200
oct21164612757
95864018142
102312312303
11a87270504
1254647b83b
132ab096342
1417d1555a7
15d8004888
hex89d315ef

2312312303 has 24 divisors (see below), whose sum is σ = 2820829680. Its totient is φ = 1887338880.

The previous prime is 2312312297. The next prime is 2312312329. The reversal of 2312312303 is 3032132132.

It is not a de Polignac number, because 2312312303 - 218 = 2312050159 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 (2312312603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92588 + ... + 114878.

It is an arithmetic number, because the mean of its divisors is an integer number (117534570).

Almost surely, 22312312303 is an apocalyptic number.

2312312303 is a deficient number, since it is larger than the sum of its proper divisors (508517377).

2312312303 is a wasteful number, since it uses less digits than its factorization.

2312312303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22407 (or 22400 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 2312312303 is about 48086.5085340992. The cubic root of 2312312303 is about 1322.3573392998.

Adding to 2312312303 its reverse (3032132132), we get a palindrome (5344444435).

The spelling of 2312312303 in words is "two billion, three hundred twelve million, three hundred twelve thousand, three hundred three".

Divisors: 1 7 29 49 73 203 511 1421 2117 3577 14819 22291 103733 156037 646439 1092259 1627243 4525073 11390701 31675511 47190047 79734907 330330329 2312312303