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2381111284 = 225311231657
BaseRepresentation
bin1000110111101100…
…1101111111110100
320010221110222121211
42031323031333310
514334031030114
61032135251204
7113002053256
oct21573157764
96127428554
102381111284
111012091172
12565519b04
132bc4042b6
14188343cd6
15de0946c4
hex8decdff4

2381111284 has 12 divisors (see below), whose sum is σ = 4245566724. Its totient is φ = 1168092224.

The previous prime is 2381111281. The next prime is 2381111287. The reversal of 2381111284 is 4821111832.

It is an interprime number because it is at equal distance from previous prime (2381111281) and next prime (2381111287).

It can be written as a sum of positive squares in 2 ways, for example, as 892694884 + 1488416400 = 29878^2 + 38580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381111281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5615617 + ... + 5616040.

It is an arithmetic number, because the mean of its divisors is an integer number (353797227).

Almost surely, 22381111284 is an apocalyptic number.

It is an amenable number.

2381111284 is a deficient number, since it is larger than the sum of its proper divisors (1864455440).

2381111284 is a wasteful number, since it uses less digits than its factorization.

2381111284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11231714 (or 11231712 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 2381111284 is about 48796.6318919657. The cubic root of 2381111284 is about 1335.3442203643.

The spelling of 2381111284 in words is "two billion, three hundred eighty-one million, one hundred eleven thousand, two hundred eighty-four".

Divisors: 1 2 4 53 106 212 11231657 22463314 44926628 595277821 1190555642 2381111284