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2820627139 = 117928111551
BaseRepresentation
bin1010100000011111…
…0101101011000011
321021120111201000211
42220013311223003
521234040032024
61143515454551
7126616635511
oct25007655303
97246451024
102820627139
111218196a10
12668757457
1335c49cc55
141ca8734b1
15117961594
hexa81f5ac3

2820627139 has 16 divisors (see below), whose sum is σ = 3127357440. Its totient is φ = 2522520000.

The previous prime is 2820627113. The next prime is 2820627151. The reversal of 2820627139 is 9317260282.

2820627139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2820627139 - 225 = 2787072707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2820627169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238414 + ... + 249964.

It is an arithmetic number, because the mean of its divisors is an integer number (195459840).

Almost surely, 22820627139 is an apocalyptic number.

2820627139 is a deficient number, since it is larger than the sum of its proper divisors (306730301).

2820627139 is a wasteful number, since it uses less digits than its factorization.

2820627139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11922.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 2820627139 is about 53109.5767164454. The cubic root of 2820627139 is about 1412.9123679084.

The spelling of 2820627139 in words is "two billion, eight hundred twenty million, six hundred twenty-seven thousand, one hundred thirty-nine".

Divisors: 1 11 79 281 869 3091 11551 22199 127061 244189 912529 3245831 10037819 35704141 256420649 2820627139