Search a number
-
+
444920049 = 32731011427
BaseRepresentation
bin11010100001001…
…111000011110001
31011000012021120100
4122201033003301
51402344420144
6112052103013
714011521000
oct3241170361
91130167510
10444920049
11209167022
12105004a69
137123b702
1443138c37
15290d8269
hex1a84f0f1

444920049 has 48 divisors (see below), whose sum is σ = 757411200. Its totient is φ = 251546400.

The previous prime is 444920041. The next prime is 444920051. The reversal of 444920049 is 940029444.

It is a happy number.

444920049 is a `hidden beast` number, since 4 + 449 + 200 + 4 + 9 = 666.

It is not a de Polignac number, because 444920049 - 23 = 444920041 is a prime.

It is a super-4 number, since 4×4449200494 (a number of 36 digits) contains 4444 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 444919995 and 444920022.

It is not an unprimeable number, because it can be changed into a prime (444920041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 311074 + ... + 312500.

It is an arithmetic number, because the mean of its divisors is an integer number (15779400).

Almost surely, 2444920049 is an apocalyptic number.

444920049 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

444920049 is a deficient number, since it is larger than the sum of its proper divisors (312491151).

444920049 is a wasteful number, since it uses less digits than its factorization.

444920049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 444920049 is about 21093.1280041629. The cubic root of 444920049 is about 763.4149469806.

The spelling of 444920049 in words is "four hundred forty-four million, nine hundred twenty thousand, forty-nine".

Divisors: 1 3 7 9 21 49 63 101 147 303 343 441 707 909 1029 1427 2121 3087 4281 4949 6363 9989 12843 14847 29967 34643 44541 69923 89901 103929 144127 209769 311787 432381 489461 629307 1008889 1297143 1468383 3026667 4405149 7062223 9080001 21186669 49435561 63560007 148306683 444920049