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7982704945 = 56912310479
BaseRepresentation
bin1110110111100111…
…00110100100110001
3202121022212102112201
413123303212210301
5112322033024240
63400041023201
7401550605155
oct73363464461
922538772481
107982704945
113427035416
121669484b01
139a2a98c67
1455a285065
1531ac30d9a
hex1dbce6931

7982704945 has 8 divisors (see below), whose sum is σ = 9593112960. Its totient is φ = 6376919280.

The previous prime is 7982704931. The next prime is 7982704957. The reversal of 7982704945 is 5494072897.

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

It is not a de Polignac number, because 7982704945 - 25 = 7982704913 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1151785 + ... + 1158694.

It is an arithmetic number, because the mean of its divisors is an integer number (1199139120).

Almost surely, 27982704945 is an apocalyptic number.

It is an amenable number.

7982704945 is a deficient number, since it is larger than the sum of its proper divisors (1610408015).

7982704945 is a wasteful number, since it uses less digits than its factorization.

7982704945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311175.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The square root of 7982704945 is about 89345.9844928691. The cubic root of 7982704945 is about 1998.5577055601.

The spelling of 7982704945 in words is "seven billion, nine hundred eighty-two million, seven hundred four thousand, nine hundred forty-five".

Divisors: 1 5 691 3455 2310479 11552395 1596540989 7982704945