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7990473479 = 312393107713
BaseRepresentation
bin1110111000100010…
…01111001100000111
3202121212111002222012
413130101033030013
5112331030122404
63400515324435
7402003622022
oct73421171407
922555432865
107990473479
113430460a9a
12166bbb071b
139a4588c21
1455b3081b9
1531b767a6e
hex1dc44f307

7990473479 has 8 divisors (see below), whose sum is σ = 8251754112. Its totient is φ = 7729413120.

The previous prime is 7990473473. The next prime is 7990473523. The reversal of 7990473479 is 9743740997.

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

It is a cyclic number.

It is not a de Polignac number, because 7990473479 - 232 = 3695506183 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 (7990473473) 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 7 ways as a sum of consecutive naturals, for example, 20327 + ... + 128039.

It is an arithmetic number, because the mean of its divisors is an integer number (1031469264).

Almost surely, 27990473479 is an apocalyptic number.

7990473479 is a deficient number, since it is larger than the sum of its proper divisors (261280633).

7990473479 is a wasteful number, since it uses less digits than its factorization.

7990473479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110137.

The product of its (nonzero) digits is 12002256, while the sum is 59.

The square root of 7990473479 is about 89389.4483650056. The cubic root of 7990473479 is about 1999.2058079212.

The spelling of 7990473479 in words is "seven billion, nine hundred ninety million, four hundred seventy-three thousand, four hundred seventy-nine".

Divisors: 1 31 2393 74183 107713 3339103 257757209 7990473479