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1444826231 = 13729105239
BaseRepresentation
bin101011000011110…
…0100110001110111
310201200200202222122
41112013210301313
510424333414411
6355211350155
750542551242
oct12607446167
93650622878
101444826231
11681626372
12343a5235b
131a0444c84
14d9c60259
1586c9b9db
hex561e4c77

1444826231 has 4 divisors (see below), whose sum is σ = 1444945200. Its totient is φ = 1444707264.

The previous prime is 1444826191. The next prime is 1444826239. The reversal of 1444826231 is 1326284441.

It is a happy number.

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 1444826231 - 218 = 1444564087 is a prime.

It is a super-2 number, since 2×14448262312 = 4175045675571330722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1444826191 and 1444826200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444826239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38891 + ... + 66348.

It is an arithmetic number, because the mean of its divisors is an integer number (361236300).

Almost surely, 21444826231 is an apocalyptic number.

1444826231 is a deficient number, since it is larger than the sum of its proper divisors (118969).

1444826231 is a wasteful number, since it uses less digits than its factorization.

1444826231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118968.

The product of its digits is 36864, while the sum is 35.

The square root of 1444826231 is about 38010.8699058572. The cubic root of 1444826231 is about 1130.5033993290.

The spelling of 1444826231 in words is "one billion, four hundred forty-four million, eight hundred twenty-six thousand, two hundred thirty-one".

Divisors: 1 13729 105239 1444826231