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44215504420 = 2252210775221
BaseRepresentation
bin101001001011011100…
…110000111000100100
311020010110021100102211
4221023130300320210
51211023132120140
632151243413204
73123462405103
oct511334607044
9136113240384
1044215504420
111782a55499a
12869b824204
134228529389
1421d63bc03a
15123bb2a2ea
hexa4b730e24

44215504420 has 12 divisors (see below), whose sum is σ = 92852559324. Its totient is φ = 17686201760.

The previous prime is 44215504397. The next prime is 44215504423. The reversal of 44215504420 is 2440551244.

It can be written as a sum of positive squares in 2 ways, for example, as 28320850944 + 15894653476 = 168288^2 + 126074^2 .

It is a super-2 number, since 2×442155044202 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44215504423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105387591 + ... + 1105387630.

It is an arithmetic number, because the mean of its divisors is an integer number (7737713277).

Almost surely, 244215504420 is an apocalyptic number.

It is an amenable number.

44215504420 is an abundant number, since it is smaller than the sum of its proper divisors (48637054904).

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

44215504420 is a wasteful number, since it uses less digits than its factorization.

44215504420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210775230 (or 2210775228 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

The spelling of 44215504420 in words is "forty-four billion, two hundred fifteen million, five hundred four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 2210775221 4421550442 8843100884 11053876105 22107752210 44215504420