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2802870139 = 19373987013
BaseRepresentation
bin1010011100010000…
…0110011101111011
321020100002120000011
42213010012131323
521220013321024
61142043122351
7126313001026
oct24704063573
97210076004
102802870139
111209168903
126628133b7
133588c3754
141c83701bd
15116105094
hexa710677b

2802870139 has 8 divisors (see below), whose sum is σ = 3030130640. Its totient is φ = 2583583776.

The previous prime is 2802870131. The next prime is 2802870157. The reversal of 2802870139 is 9310782082.

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 2802870139 - 23 = 2802870131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2802870131) 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, 1992804 + ... + 1994209.

It is an arithmetic number, because the mean of its divisors is an integer number (378766330).

Almost surely, 22802870139 is an apocalyptic number.

2802870139 is a deficient number, since it is larger than the sum of its proper divisors (227260501).

2802870139 is a wasteful number, since it uses less digits than its factorization.

2802870139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3987069.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 2802870139 is about 52942.1395393122. The cubic root of 2802870139 is about 1409.9411706924.

The spelling of 2802870139 in words is "two billion, eight hundred two million, eight hundred seventy thousand, one hundred thirty-nine".

Divisors: 1 19 37 703 3987013 75753247 147519481 2802870139