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8001213145 = 52277049527
BaseRepresentation
bin1110111001110100…
…01101001011011001
3202122121200202000121
413130322031023121
5112341302310040
63401541433241
7402164122012
oct73472151331
922577622017
108001213145
113436526952
12167370b821
139a6879363
1455c902009
1531c689c4a
hex1dce8d2d9

8001213145 has 8 divisors (see below), whose sum is σ = 9643754304. Its totient is φ = 6372771504.

The previous prime is 8001213131. The next prime is 8001213161. The reversal of 8001213145 is 5413121008.

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 8001213145 - 29 = 8001212633 is a prime.

It is a Duffinian number.

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, 3523629 + ... + 3525898.

It is an arithmetic number, because the mean of its divisors is an integer number (1205469288).

Almost surely, 28001213145 is an apocalyptic number.

It is an amenable number.

8001213145 is a deficient number, since it is larger than the sum of its proper divisors (1642541159).

8001213145 is a wasteful number, since it uses less digits than its factorization.

8001213145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7049759.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 8001213145 is about 89449.5005296284. The cubic root of 8001213145 is about 2000.1010903070.

The spelling of 8001213145 in words is "eight billion, one million, two hundred thirteen thousand, one hundred forty-five".

Divisors: 1 5 227 1135 7049527 35247635 1600242629 8001213145