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440000044 = 22112909091
BaseRepresentation
bin11010001110011…
…101111000101100
31010122221022120221
4122032131320230
51400120000134
6111354421124
713621636651
oct3216357054
91118838527
10440000044
11206406600
121034317a4
1370208173
1442617c28
15289655b4
hex1a39de2c

440000044 has 18 divisors (see below), whose sum is σ = 846364652. Its totient is φ = 199999800.

The previous prime is 440000017. The next prime is 440000047.

440000044 is nontrivially palindromic in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 439999982 and 440000027.

It is not an unprimeable number, because it can be changed into a prime (440000047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 454062 + ... + 455029.

Almost surely, 2440000044 is an apocalyptic number.

440000044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

440000044 is a deficient number, since it is larger than the sum of its proper divisors (406364608).

440000044 is a wasteful number, since it uses less digits than its factorization.

440000044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909117 (or 909104 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 440000044 is about 20976.1780122119. The cubic root of 440000044 is about 760.5905175053.

It can be divided in two parts, 4400000 and 44, that added together give a palindrome (4400044).

The spelling of 440000044 in words is "four hundred forty million, forty-four", and thus it is an aban number.

Divisors: 1 2 4 11 22 44 121 242 484 909091 1818182 3636364 10000001 20000002 40000004 110000011 220000022 440000044