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2163742159 = 4164218219
BaseRepresentation
bin1000000011111000…
…0001010111001111
312120210110111020111
42000332001113033
513412404222114
6554412300451
7104422335115
oct20076012717
95523414214
102163742159
11a10415567
12504771727
13286378207
1416751dab5
15c9e58bc4
hex80f815cf

2163742159 has 8 divisors (see below), whose sum is σ = 2217131280. Its totient is φ = 2110382400.

The previous prime is 2163742157. The next prime is 2163742169. The reversal of 2163742159 is 9512473612.

It is a happy number.

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 2163742159 - 21 = 2163742157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163742157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259152 + ... + 267370.

It is an arithmetic number, because the mean of its divisors is an integer number (277141410).

Almost surely, 22163742159 is an apocalyptic number.

2163742159 is a deficient number, since it is larger than the sum of its proper divisors (53389121).

2163742159 is an equidigital number, since it uses as much as digits as its factorization.

2163742159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14681.

The product of its digits is 90720, while the sum is 40.

The square root of 2163742159 is about 46516.0419532875. The cubic root of 2163742159 is about 1293.4068867738.

The spelling of 2163742159 in words is "two billion, one hundred sixty-three million, seven hundred forty-two thousand, one hundred fifty-nine".

Divisors: 1 41 6421 8219 263261 336979 52774199 2163742159