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7990000012 = 227392702977
BaseRepresentation
bin1110111000011110…
…11011100110001100
3202121211121001111101
413130033123212030
5112330420000022
63400501232444
7401666610451
oct73417334614
922554531441
107990000012
1134301682a5
12166ba02724
139a4451577
1455b223828
1531b6c2627
hex1dc3db98c

7990000012 has 12 divisors (see below), whose sum is σ = 14001426040. Its totient is φ = 3989592576.

The previous prime is 7990000003. The next prime is 7990000037. The reversal of 7990000012 is 2100000997.

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 3 ways as a sum of consecutive naturals, for example, 1348533 + ... + 1354444.

Almost surely, 27990000012 is an apocalyptic number.

It is an amenable number.

7990000012 is a deficient number, since it is larger than the sum of its proper divisors (6011426028).

7990000012 is a wasteful number, since it uses less digits than its factorization.

7990000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703720 (or 2703718 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 7990000012 is about 89386.7999874702. The cubic root of 7990000012 is about 1999.1663202040.

The spelling of 7990000012 in words is "seven billion, nine hundred ninety million, twelve", and thus it is an aban number.

Divisors: 1 2 4 739 1478 2956 2702977 5405954 10811908 1997500003 3995000006 7990000012