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1054444481 = 1523692347
BaseRepresentation
bin111110110110011…
…000101111000001
32201111010022220022
4332312120233001
54124414210411
6252344223225
735062426106
oct7666305701
92644108808
101054444481
114a122a822
1225516ab15
1313a5c055c
14a0080aad
1562887edb
hex3ed98bc1

1054444481 has 4 divisors (see below), whose sum is σ = 1055138352. Its totient is φ = 1053750612.

The previous prime is 1054444477. The next prime is 1054444493. The reversal of 1054444481 is 1844444501.

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: 1844444501 = 3795748593.

It is a cyclic number.

It is not a de Polignac number, because 1054444481 - 22 = 1054444477 is a prime.

It is a super-2 number, since 2×10544444812 = 2223706327022718722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1054444411) 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, 344651 + ... + 347696.

It is an arithmetic number, because the mean of its divisors is an integer number (263784588).

Almost surely, 21054444481 is an apocalyptic number.

It is an amenable number.

1054444481 is a deficient number, since it is larger than the sum of its proper divisors (693871).

1054444481 is an equidigital number, since it uses as much as digits as its factorization.

1054444481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693870.

The product of its (nonzero) digits is 40960, while the sum is 35.

The square root of 1054444481 is about 32472.2109040946. The cubic root of 1054444481 is about 1017.8284188777.

Adding to 1054444481 its reverse (1844444501), we get a palindrome (2898888982).

The spelling of 1054444481 in words is "one billion, fifty-four million, four hundred forty-four thousand, four hundred eighty-one".

Divisors: 1 1523 692347 1054444481