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2312143033 = 18771231829
BaseRepresentation
bin1000100111010000…
…1000000010111001
312222010201000222011
42021310020002321
514213402034113
61021233125521
7111203614534
oct21164100271
95863630864
102312143033
11a87165312
125463b98a1
132ab037295
1417d10da1b
15d7ebe63d
hex89d080b9

2312143033 has 4 divisors (see below), whose sum is σ = 2313376740. Its totient is φ = 2310909328.

The previous prime is 2312142977. The next prime is 2312143037. The reversal of 2312143033 is 3303412132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 897781369 + 1414361664 = 29963^2 + 37608^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312143033 - 213 = 2312134841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2312142995 and 2312143013.

It is not an unprimeable number, because it can be changed into a prime (2312143037) 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, 614038 + ... + 617791.

It is an arithmetic number, because the mean of its divisors is an integer number (578344185).

Almost surely, 22312143033 is an apocalyptic number.

It is an amenable number.

2312143033 is a deficient number, since it is larger than the sum of its proper divisors (1233707).

2312143033 is a wasteful number, since it uses less digits than its factorization.

2312143033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233706.

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

The square root of 2312143033 is about 48084.7484448032. The cubic root of 2312143033 is about 1322.3250713273.

Adding to 2312143033 its reverse (3303412132), we get a palindrome (5615555165).

The spelling of 2312143033 in words is "two billion, three hundred twelve million, one hundred forty-three thousand, thirty-three".

Divisors: 1 1877 1231829 2312143033