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440130888080 = 245131724894281
BaseRepresentation
bin1100110011110011101…
…10000110000110010000
31120002001110220201011222
412121321312012012100
524202342001404310
6534105432224212
743540565551502
oct6317166060620
91502043821158
10440130888080
1115a727459604
1271372b3b068
133267285a670
1417433cc1d72
15b6aeb37055
hex6679d86190

440130888080 has 80 divisors (see below), whose sum is σ = 1166844785904. Its totient is φ = 152950456320.

The previous prime is 440130888019. The next prime is 440130888089. The reversal of 440130888080 is 80888031044.

It can be written as a sum of positive squares in 8 ways, for example, as 11949113344 + 428181774736 = 109312^2 + 654356^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (440130888089) 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, 12429461 + ... + 12464820.

Almost surely, 2440130888080 is an apocalyptic number.

440130888080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440130888080 is an abundant number, since it is smaller than the sum of its proper divisors (726713897824).

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

440130888080 is a wasteful number, since it uses less digits than its factorization.

440130888080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24894324 (or 24894318 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 44.

The spelling of 440130888080 in words is "four hundred forty billion, one hundred thirty million, eight hundred eighty-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 13 16 17 20 26 34 40 52 65 68 80 85 104 130 136 170 208 221 260 272 340 442 520 680 884 1040 1105 1360 1768 2210 3536 4420 8840 17680 24894281 49788562 99577124 124471405 199154248 248942810 323625653 398308496 423202777 497885620 647251306 846405554 995771240 1294502612 1618128265 1692811108 1991542480 2116013885 2589005224 3236256530 3385622216 4232027770 5178010448 5501636101 6472513060 6771244432 8464055540 11003272202 12945026120 16928111080 22006544404 25890052240 27508180505 33856222160 44013088808 55016361010 88026177616 110032722020 220065444040 440130888080