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444096720 = 243252921269
BaseRepresentation
bin11010011110000…
…110000011010000
31010221122110011200
4122132012003100
51402142043340
6112022311200
714001521424
oct3236060320
91127573150
10444096720
11208754491
12104888500
1371010a32
1442da2b84
1528ec4330
hex1a7860d0

444096720 has 120 divisors (see below), whose sum is σ = 1542925800. Its totient is φ = 114336768.

The previous prime is 444096677. The next prime is 444096721. The reversal of 444096720 is 27690444.

It can be written as a sum of positive squares in 4 ways, for example, as 60093504 + 384003216 = 7752^2 + 19596^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444096721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10246 + ... + 31514.

It is an arithmetic number, because the mean of its divisors is an integer number (12857715).

Almost surely, 2444096720 is an apocalyptic number.

444096720 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 444096720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771462900).

444096720 is an abundant number, since it is smaller than the sum of its proper divisors (1098829080).

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

444096720 is a wasteful number, since it uses less digits than its factorization.

444096720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21317 (or 21308 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 444096720 is about 21073.6024447649. The cubic root of 444096720 is about 762.9437538805.

The spelling of 444096720 in words is "four hundred forty-four million, ninety-six thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 29 30 36 40 45 48 58 60 72 80 87 90 116 120 144 145 174 180 232 240 261 290 348 360 435 464 522 580 696 720 870 1044 1160 1305 1392 1740 2088 2320 2610 3480 4176 5220 6960 10440 20880 21269 42538 63807 85076 106345 127614 170152 191421 212690 255228 319035 340304 382842 425380 510456 616801 638070 765684 850760 957105 1020912 1233602 1276140 1531368 1701520 1850403 1914210 2467204 2552280 3062736 3084005 3700806 3828420 4934408 5104560 5551209 6168010 7401612 7656840 9252015 9868816 11102418 12336020 14803224 15313680 18504030 22204836 24672040 27756045 29606448 37008060 44409672 49344080 55512090 74016120 88819344 111024180 148032240 222048360 444096720