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8013021049 = 114649156691
BaseRepresentation
bin1110111011001110…
…01111111101111001
3202200102220122102101
413131213033331321
5112402313133144
63403042503401
7402366361255
oct73547177571
922612818371
108013021049
113442161350
121677664b61
139a9151a97
145602d7265
1531d71d6d4
hex1dd9cff79

8013021049 has 8 divisors (see below), whose sum is σ = 8743413600. Its totient is φ = 7282951200.

The previous prime is 8013021047. The next prime is 8013021053. The reversal of 8013021049 is 9401203108.

It is a happy number.

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 8013021049 - 21 = 8013021047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8013021041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27207 + ... + 129484.

It is an arithmetic number, because the mean of its divisors is an integer number (1092926700).

Almost surely, 28013021049 is an apocalyptic number.

It is an amenable number.

8013021049 is a deficient number, since it is larger than the sum of its proper divisors (730392551).

8013021049 is a wasteful number, since it uses less digits than its factorization.

8013021049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161351.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 8013021049 is about 89515.4793820599. The cubic root of 8013021049 is about 2001.0844992411.

The spelling of 8013021049 in words is "eight billion, thirteen million, twenty-one thousand, forty-nine".

Divisors: 1 11 4649 51139 156691 1723601 728456459 8013021049