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2279920105 = 51923999159
BaseRepresentation
bin1000011111100100…
…1101000111101001
312212220001221102101
42013321031013221
514132124420410
61014122333401
7110333000251
oct20771150751
95786057371
102279920105
11a6aa567a1
1253765a261
132a4464568
14178b22961
15d5256d3a
hex87e4d1e9

2279920105 has 8 divisors (see below), whose sum is σ = 2879899200. Its totient is φ = 1727939376.

The previous prime is 2279920091. The next prime is 2279920183. The reversal of 2279920105 is 5010299722.

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 2279920105 - 211 = 2279918057 is a prime.

It is a super-2 number, since 2×22799201052 = 10396071370366422050, which contains 22 as substring.

It is an unprimeable number.

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, 11999485 + ... + 11999674.

It is an arithmetic number, because the mean of its divisors is an integer number (359987400).

Almost surely, 22279920105 is an apocalyptic number.

It is an amenable number.

2279920105 is a deficient number, since it is larger than the sum of its proper divisors (599979095).

2279920105 is a wasteful number, since it uses less digits than its factorization.

2279920105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23999183.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 2279920105 is about 47748.5089295990. The cubic root of 2279920105 is about 1316.1534992851.

The spelling of 2279920105 in words is "two billion, two hundred seventy-nine million, nine hundred twenty thousand, one hundred five".

Divisors: 1 5 19 95 23999159 119995795 455984021 2279920105