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2912049139 = 31432184583
BaseRepresentation
bin1010110110010010…
…0101011111110011
321111221112102102211
42231210211133303
521430441033024
61200543152551
7132110003116
oct25544453763
97457472384
102912049139
11126485968a
126932a5757
133753cc1cc
141d8a7057d
151209be594
hexad9257f3

2912049139 has 8 divisors (see below), whose sum is σ = 3075894272. Its totient is φ = 2752573320.

The previous prime is 2912049137. The next prime is 2912049157. The reversal of 2912049139 is 9319402192.

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 2912049139 - 21 = 2912049137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2912049137) by changing a digit.

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, 1090959 + ... + 1093624.

It is an arithmetic number, because the mean of its divisors is an integer number (384486784).

Almost surely, 22912049139 is an apocalyptic number.

2912049139 is a deficient number, since it is larger than the sum of its proper divisors (163845133).

2912049139 is a wasteful number, since it uses less digits than its factorization.

2912049139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184657.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 2912049139 is about 53963.4055541346. The cubic root of 2912049139 is about 1428.0154287173.

The spelling of 2912049139 in words is "two billion, nine hundred twelve million, forty-nine thousand, one hundred thirty-nine".

Divisors: 1 31 43 1333 2184583 67722073 93937069 2912049139