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2240201231 = 17131776543
BaseRepresentation
bin1000010110000110…
…1100001000001111
312210010100000100222
42011201230020033
514041442414411
61010143141555
7106341252632
oct20541541017
95703300328
102240201231
11a4a598384
125262a48bb
13299168978
14173743c19
15d1a0d4db
hex8586c20f

2240201231 has 4 divisors (see below), whose sum is σ = 2371977792. Its totient is φ = 2108424672.

The previous prime is 2240201177. The next prime is 2240201237. The reversal of 2240201231 is 1321020422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2240201231 - 26 = 2240201167 is a prime.

It is a super-2 number, since 2×22402012312 = 10037003110747830722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 131776543 = 2240201231 / (2 + 2 + 4 + 0 + 2 + 0 + 1 + 2 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240201237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65888255 + ... + 65888288.

It is an arithmetic number, because the mean of its divisors is an integer number (592994448).

Almost surely, 22240201231 is an apocalyptic number.

2240201231 is a deficient number, since it is larger than the sum of its proper divisors (131776561).

2240201231 is a wasteful number, since it uses less digits than its factorization.

2240201231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131776560.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2240201231 is about 47330.7641075020. The cubic root of 2240201231 is about 1308.4657038513.

Adding to 2240201231 its reverse (1321020422), we get a palindrome (3561221653).

The spelling of 2240201231 in words is "two billion, two hundred forty million, two hundred one thousand, two hundred thirty-one".

Divisors: 1 17 131776543 2240201231