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7945112933 = 61130247753
BaseRepresentation
bin1110110011001000…
…01100110101100101
3202111201010112222222
413121210030311211
5112232422103213
63352215202125
7400613226362
oct73144146545
922451115888
107945112933
113407899a3a
121658976345
13998066474
1455529b469
153177a7808
hex1d990cd65

7945112933 has 4 divisors (see below), whose sum is σ = 8075360748. Its totient is φ = 7814865120.

The previous prime is 7945112887. The next prime is 7945112947. The reversal of 7945112933 is 3392115497.

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 3542392324 + 4402720609 = 59518^2 + 66353^2 .

It is a cyclic number.

It is not a de Polignac number, because 7945112933 - 232 = 3650145637 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 (7945112953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65123816 + ... + 65123937.

It is an arithmetic number, because the mean of its divisors is an integer number (2018840187).

Almost surely, 27945112933 is an apocalyptic number.

It is an amenable number.

7945112933 is a deficient number, since it is larger than the sum of its proper divisors (130247815).

7945112933 is a wasteful number, since it uses less digits than its factorization.

7945112933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130247814.

The product of its digits is 204120, while the sum is 44.

The square root of 7945112933 is about 89135.3629767670. The cubic root of 7945112933 is about 1995.4155773135.

The spelling of 7945112933 in words is "seven billion, nine hundred forty-five million, one hundred twelve thousand, nine hundred thirty-three".

Divisors: 1 61 130247753 7945112933