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44332142012020 = 22513720533787981
BaseRepresentation
bin10100001010001111000011…
…00100111010011001110100
312210222010000012102010110101
422011013201210322121310
521302314211323341040
6234141523242203444
712223614543423202
oct1205074144723164
9183863005363411
1044332142012020
111314217947a335
124b7ba487b3584
131b97670294305
14ad398966a072
1551d2aa07509a
hex2851e193a674

44332142012020 has 48 divisors (see below), whose sum is σ = 93781728160848. Its totient is φ = 17602540231680.

The previous prime is 44332142012003. The next prime is 44332142012023. The reversal of 44332142012020 is 2021024123344.

It can be written as a sum of positive squares in 8 ways, for example, as 2493133629156 + 41839008382864 = 1578966^2 + 6468308^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 44332142012020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44332142012023) 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, 55866430 + ... + 56654410.

It is an arithmetic number, because the mean of its divisors is an integer number (1953786003351).

Almost surely, 244332142012020 is an apocalyptic number.

It is an amenable number.

44332142012020 is an abundant number, since it is smaller than the sum of its proper divisors (49449586148828).

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

44332142012020 is a wasteful number, since it uses less digits than its factorization.

44332142012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808660 (or 808658 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 44332142012020 its reverse (2021024123344), we get a palindrome (46353166135364).

The spelling of 44332142012020 in words is "forty-four trillion, three hundred thirty-two billion, one hundred forty-two million, twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 137 274 548 685 1370 2740 20533 41066 82132 102665 205330 410660 787981 1575962 2813021 3151924 3939905 5626042 7879810 11252084 14065105 15759620 28130210 56260420 107953397 215906794 431813588 539766985 1079533970 2159067940 16179613873 32359227746 64718455492 80898069365 161796138730 323592277460 2216607100601 4433214201202 8866428402404 11083035503005 22166071006010 44332142012020