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2312776349 = 13199363467
BaseRepresentation
bin1000100111011010…
…0010101010011101
312222011220012201022
42021312202222131
514214032320344
61021254453525
7111212163122
oct21166425235
95864805638
102312776349
11a87558114
125466642a5
132ab1c9620
1417d236749
15d80970ee
hex89da2a9d

2312776349 has 8 divisors (see below), whose sum is σ = 2621771040. Its totient is φ = 2022508656.

The previous prime is 2312776337. The next prime is 2312776351. The reversal of 2312776349 is 9436772132.

2312776349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2k-2312776349 is a prime.

It is a super-4 number, since 4×23127763494 (a number of 39 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312776379) 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, 4681487 + ... + 4681980.

It is an arithmetic number, because the mean of its divisors is an integer number (327721380).

Almost surely, 22312776349 is an apocalyptic number.

It is an amenable number.

2312776349 is a deficient number, since it is larger than the sum of its proper divisors (308994691).

2312776349 is a wasteful number, since it uses less digits than its factorization.

2312776349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9363499.

The product of its digits is 381024, while the sum is 44.

The square root of 2312776349 is about 48091.3334084219. Note that the first 3 decimals coincide. The cubic root of 2312776349 is about 1322.4457924020.

The spelling of 2312776349 in words is "two billion, three hundred twelve million, seven hundred seventy-six thousand, three hundred forty-nine".

Divisors: 1 13 19 247 9363467 121725071 177905873 2312776349