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2240108381 = 7320015483
BaseRepresentation
bin1000010110000101…
…0101011101011101
312210010011022000002
42011201111131131
514041431432011
61010141144045
7106340415140
oct20541253535
95703138002
102240108381
11a4a534645
1252625b025
13299135624
1417371c057
15d19e0c3b
hex8585575d

2240108381 has 4 divisors (see below), whose sum is σ = 2560123872. Its totient is φ = 1920092892.

The previous prime is 2240108363. The next prime is 2240108399. The reversal of 2240108381 is 1838010422.

2240108381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1838010422 = 2919005211.

It is an interprime number because it is at equal distance from previous prime (2240108363) and next prime (2240108399).

It is a cyclic number.

It is not a de Polignac number, because 2240108381 - 26 = 2240108317 is a prime.

It is a super-2 number, since 2×22401083812 = 10036171117252882322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240108281) 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, 160007735 + ... + 160007748.

It is an arithmetic number, because the mean of its divisors is an integer number (640030968).

Almost surely, 22240108381 is an apocalyptic number.

It is an amenable number.

2240108381 is a deficient number, since it is larger than the sum of its proper divisors (320015491).

2240108381 is an equidigital number, since it uses as much as digits as its factorization.

2240108381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320015490.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 2240108381 is about 47329.7832342385. The cubic root of 2240108381 is about 1308.4476262016.

The spelling of 2240108381 in words is "two billion, two hundred forty million, one hundred eight thousand, three hundred eighty-one".

Divisors: 1 7 320015483 2240108381