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444472960 = 2755979149
BaseRepresentation
bin11010011111100…
…001111010000000
31010222100120021111
4122133201322000
51402241113320
6112034333104
714004646351
oct3237417200
91128316244
10444472960
11208991128
12104a2a194
1371113069
144305dd28
152904aa5a
hex1a7e1e80

444472960 has 128 divisors (see below), whose sum is σ = 1101600000. Its totient is φ = 171405312.

The previous prime is 444472943. The next prime is 444472961. The reversal of 444472960 is 69274444.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (444472961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2982966 + ... + 2983114.

It is an arithmetic number, because the mean of its divisors is an integer number (8606250).

Almost surely, 2444472960 is an apocalyptic number.

444472960 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 444472960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550800000).

444472960 is an abundant number, since it is smaller than the sum of its proper divisors (657127040).

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

444472960 is a wasteful number, since it uses less digits than its factorization.

444472960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 444472960 is about 21082.5273627239. The cubic root of 444472960 is about 763.1591491011.

The spelling of 444472960 in words is "four hundred forty-four million, four hundred seventy-two thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 59 64 79 80 118 128 149 158 160 236 295 298 316 320 395 472 590 596 632 640 745 790 944 1180 1192 1264 1490 1580 1888 2360 2384 2528 2980 3160 3776 4661 4720 4768 5056 5960 6320 7552 8791 9322 9440 9536 10112 11771 11920 12640 17582 18644 18880 19072 23305 23542 23840 25280 35164 37288 37760 43955 46610 47084 47680 50560 58855 70328 74576 87910 93220 94168 95360 117710 140656 149152 175820 186440 188336 235420 281312 298304 351640 372880 376672 470840 562624 596608 694489 703280 745760 753344 941680 1125248 1388978 1406560 1491520 1506688 1883360 2777956 2813120 2983040 3472445 3766720 5555912 5626240 6944890 7533440 11111824 13889780 22223648 27779560 44447296 55559120 88894592 111118240 222236480 444472960