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444455131 = 2922816719
BaseRepresentation
bin11010011111011…
…101100011011011
31010222022122211011
4122133131203123
51402240031011
6112034114351
714004543361
oct3237354333
91128278734
10444455131
1120897979a
12104a1b9b7
1371107c03
1443057631
1529045621
hex1a7dd8db

444455131 has 8 divisors (see below), whose sum is σ = 460051200. Its totient is φ = 428877120.

The previous prime is 444455119. The next prime is 444455147. The reversal of 444455131 is 131554444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 444455131 - 27 = 444455003 is a prime.

It is a super-2 number, since 2×4444551312 = 395080726944454322, 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 = 444455093 and 444455102.

It is not an unprimeable number, because it can be changed into a prime (444455111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62790 + ... + 69508.

It is an arithmetic number, because the mean of its divisors is an integer number (57506400).

Almost surely, 2444455131 is an apocalyptic number.

444455131 is a deficient number, since it is larger than the sum of its proper divisors (15596069).

444455131 is a wasteful number, since it uses less digits than its factorization.

444455131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9029.

The product of its digits is 19200, while the sum is 31.

The square root of 444455131 is about 21082.1045201849. The cubic root of 444455131 is about 763.1489448460.

The spelling of 444455131 in words is "four hundred forty-four million, four hundred fifty-five thousand, one hundred thirty-one".

Divisors: 1 29 2281 6719 66149 194851 15326039 444455131