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7955142313 = 10972982957
BaseRepresentation
bin1110110100010100…
…11101011010101001
3202112102000002201111
413122022131122221
5112243004023223
63353214150321
7401064410506
oct73212353251
922472002644
107955142313
11341251a188
1216601b23a1
1399a168501
1455674c4ad
153185d930d
hex1da29d6a9

7955142313 has 4 divisors (see below), whose sum is σ = 8028125380. Its totient is φ = 7882159248.

The previous prime is 7955142311. The next prime is 7955142323. The reversal of 7955142313 is 3132415597.

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 6788441664 + 1166700649 = 82392^2 + 34157^2 .

It is a cyclic number.

It is not a de Polignac number, because 7955142313 - 21 = 7955142311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7955142311) 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, 36491370 + ... + 36491587.

It is an arithmetic number, because the mean of its divisors is an integer number (2007031345).

Almost surely, 27955142313 is an apocalyptic number.

It is an amenable number.

7955142313 is a deficient number, since it is larger than the sum of its proper divisors (72983067).

7955142313 is a wasteful number, since it uses less digits than its factorization.

7955142313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72983066.

The product of its digits is 113400, while the sum is 40.

The square root of 7955142313 is about 89191.6044984056. The cubic root of 7955142313 is about 1996.2548507226.

The spelling of 7955142313 in words is "seven billion, nine hundred fifty-five million, one hundred forty-two thousand, three hundred thirteen".

Divisors: 1 109 72982957 7955142313