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2163001311 = 32240333479
BaseRepresentation
bin1000000011101100…
…1100011111011111
312120202001211222200
42000323030133133
513412212020221
6554344342543
7104413131162
oct20073143737
95522054880
102163001311
11a0aa59999
12504474a53
13286178c43
141673a9ad9
15c9d5e426
hex80ecc7df

2163001311 has 6 divisors (see below), whose sum is σ = 3124335240. Its totient is φ = 1442000868.

The previous prime is 2163001303. The next prime is 2163001319. The reversal of 2163001311 is 1131003612.

2163001311 is a `hidden beast` number, since 2 + 1 + 630 + 0 + 1 + 31 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (2163001303) and next prime (2163001319).

It is not a de Polignac number, because 2163001311 - 23 = 2163001303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163001319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120166731 + ... + 120166748.

It is an arithmetic number, because the mean of its divisors is an integer number (520722540).

Almost surely, 22163001311 is an apocalyptic number.

2163001311 is a deficient number, since it is larger than the sum of its proper divisors (961333929).

2163001311 is a wasteful number, since it uses less digits than its factorization.

2163001311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240333485 (or 240333482 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2163001311 is about 46508.0779112618. The cubic root of 2163001311 is about 1293.2592525337.

Adding to 2163001311 its reverse (1131003612), we get a palindrome (3294004923).

The spelling of 2163001311 in words is "two billion, one hundred sixty-three million, one thousand, three hundred eleven".

Divisors: 1 3 9 240333479 721000437 2163001311