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2144241431 = 3511610721
BaseRepresentation
bin111111111001110…
…1000011100010111
312112102202202021022
41333303220130113
513342411211211
6552434311355
7104064515513
oct17763503427
95472682238
102144241431
11a00406362
124ba12855b
1328230b117
14164ac5143
15c83a5bdb
hex7fce8717

2144241431 has 4 divisors (see below), whose sum is σ = 2144855664. Its totient is φ = 2143627200.

The previous prime is 2144241419. The next prime is 2144241443. The reversal of 2144241431 is 1341424412.

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

It is an interprime number because it is at equal distance from previous prime (2144241419) and next prime (2144241443).

It is a cyclic number.

It is not a de Polignac number, because 2144241431 - 210 = 2144240407 is a prime.

It is a super-2 number, since 2×21442414312 = 9195542628833855522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2144241431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144240431) 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, 301850 + ... + 308871.

It is an arithmetic number, because the mean of its divisors is an integer number (536213916).

Almost surely, 22144241431 is an apocalyptic number.

2144241431 is a deficient number, since it is larger than the sum of its proper divisors (614233).

2144241431 is an equidigital number, since it uses as much as digits as its factorization.

2144241431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614232.

The product of its digits is 3072, while the sum is 26.

The square root of 2144241431 is about 46305.9545954945. The cubic root of 2144241431 is about 1289.5095447396.

Adding to 2144241431 its reverse (1341424412), we get a palindrome (3485665843).

The spelling of 2144241431 in words is "two billion, one hundred forty-four million, two hundred forty-one thousand, four hundred thirty-one".

Divisors: 1 3511 610721 2144241431