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444130000 = 2454231931
BaseRepresentation
bin11010011110001…
…110001011010000
31010221201010211021
4122132032023100
51402144130000
6112023125224
714002020436
oct3236161320
91127633737
10444130000
11208777496
121048a3814
1371022c22
1442db0d56
1528ece11a
hex1a78e2d0

444130000 has 100 divisors (see below), whose sum is σ = 1122615648. Its totient is φ = 169840000.

The previous prime is 444129989. The next prime is 444130003. The reversal of 444130000 is 31444.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444130003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 229035 + ... + 230965.

Almost surely, 2444130000 is an apocalyptic number.

444130000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561307824).

444130000 is an abundant number, since it is smaller than the sum of its proper divisors (678485648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444130000 is a wasteful number, since it uses less digits than its factorization.

444130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982 (or 1961 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 444130000 is about 21074.3920434256. The cubic root of 444130000 is about 762.9628113912.

Adding to 444130000 its reverse (31444), we get a palindrome (444161444).

The spelling of 444130000 in words is "four hundred forty-four million, one hundred thirty thousand".

Divisors: 1 2 4 5 8 10 16 20 23 25 40 46 50 80 92 100 115 125 184 200 230 250 368 400 460 500 575 625 920 1000 1150 1250 1840 1931 2000 2300 2500 2875 3862 4600 5000 5750 7724 9200 9655 10000 11500 14375 15448 19310 23000 28750 30896 38620 44413 46000 48275 57500 77240 88826 96550 115000 154480 177652 193100 222065 230000 241375 355304 386200 444130 482750 710608 772400 888260 965500 1110325 1206875 1776520 1931000 2220650 2413750 3553040 3862000 4441300 4827500 5551625 8882600 9655000 11103250 17765200 19310000 22206500 27758125 44413000 55516250 88826000 111032500 222065000 444130000