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1441223141 = 1826978889
BaseRepresentation
bin101010111100111…
…0101000111100101
310201102220201110212
41111321311013211
510422423120031
6355002225205
750500123511
oct12571650745
93642821425
101441223141
1167a595306
123427b5205
1319c782c77
14d95a3141
15867d912b
hex55e751e5

1441223141 has 4 divisors (see below), whose sum is σ = 1441320300. Its totient is φ = 1441125984.

The previous prime is 1441223129. The next prime is 1441223153. The reversal of 1441223141 is 1413221441.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (1441223129) and next prime (1441223153).

It can be written as a sum of positive squares in 2 ways, for example, as 382046116 + 1059177025 = 19546^2 + 32545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1441223141 - 214 = 1441206757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1441223101) 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, 21176 + ... + 57713.

It is an arithmetic number, because the mean of its divisors is an integer number (360330075).

Almost surely, 21441223141 is an apocalyptic number.

It is an amenable number.

1441223141 is a deficient number, since it is larger than the sum of its proper divisors (97159).

1441223141 is an equidigital number, since it uses as much as digits as its factorization.

1441223141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97158.

The product of its digits is 768, while the sum is 23.

The square root of 1441223141 is about 37963.4447989115. Note that the first 3 decimals coincide. The cubic root of 1441223141 is about 1129.5628718822.

Adding to 1441223141 its reverse (1413221441), we get a palindrome (2854444582).

The spelling of 1441223141 in words is "one billion, four hundred forty-one million, two hundred twenty-three thousand, one hundred forty-one".

Divisors: 1 18269 78889 1441223141