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444243043020 = 223572693392767
BaseRepresentation
bin1100111011011101111…
…00101110001011001100
31120110200001122211021210
412131232330232023030
524234302204334040
6540025450054420
744044520363430
oct6355674561314
91513601584253
10444243043020
11161447686467
127212011a410
1332b7978a23a
14177040ac9c0
15b850b63480
hex676ef2e2cc

444243043020 has 96 divisors (see below), whose sum is σ = 1422109237248. Its totient is φ = 101503302912.

The previous prime is 444243042989. The next prime is 444243043039. The reversal of 444243043020 is 20340342444.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 934677 + ... + 1327443.

It is an arithmetic number, because the mean of its divisors is an integer number (14813637888).

Almost surely, 2444243043020 is an apocalyptic number.

It is an amenable number.

444243043020 is an abundant number, since it is smaller than the sum of its proper divisors (977866194228).

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

444243043020 is a wasteful number, since it uses less digits than its factorization.

444243043020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395479 (or 395477 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 444243043020 its reverse (20340342444), we get a palindrome (464583385464).

The spelling of 444243043020 in words is "four hundred forty-four billion, two hundred forty-three million, forty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 2693 5386 8079 10772 13465 16158 18851 26930 32316 37702 40395 53860 56553 75404 80790 94255 113106 161580 188510 226212 282765 377020 392767 565530 785534 1131060 1178301 1571068 1963835 2356602 2749369 3927670 4713204 5498738 5891505 7855340 8248107 10997476 11783010 13746845 16496214 23566020 27493690 32992428 41240535 54987380 82481070 164962140 1057721531 2115443062 3173164593 4230886124 5288607655 6346329186 7404050717 10577215310 12692658372 14808101434 15865822965 21154430620 22212152151 29616202868 31731645930 37020253585 44424304302 63463291860 74040507170 88848608604 111060760755 148081014340 222121521510 444243043020