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10444311440 = 24553246477
BaseRepresentation
bin10011011101000011…
…11000101110010000
3222221212210222211122
421232201320232100
5132342220431230
64444213501412
7516551116403
oct115641705620
928855728748
1010444311440
11447a5a5852
122035941868
13ca5a74b54
1471117dd3a
15411dc5be5
hex26e878b90

10444311440 has 60 divisors (see below), whose sum is σ = 24750371604. Its totient is φ = 4098811392.

The previous prime is 10444311433. The next prime is 10444311461. The reversal of 10444311440 is 4411344401.

It can be written as a sum of positive squares in 6 ways, for example, as 4376464 + 10439934976 = 2092^2 + 102176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201482 + ... + 247958.

Almost surely, 210444311440 is an apocalyptic number.

10444311440 is a gapful number since it is divisible by the number (10) 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 10444311440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12375185802).

10444311440 is an abundant number, since it is smaller than the sum of its proper divisors (14306060164).

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

10444311440 is an equidigital number, since it uses as much as digits as its factorization.

10444311440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46596 (or 46537 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 10444311440 its reverse (4411344401), we get a palindrome (14855655841).

The spelling of 10444311440 in words is "ten billion, four hundred forty-four million, three hundred eleven thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 53 80 106 212 265 424 530 848 1060 2120 2809 4240 5618 11236 14045 22472 28090 44944 46477 56180 92954 112360 185908 224720 232385 371816 464770 743632 929540 1859080 2463281 3718160 4926562 9853124 12316405 19706248 24632810 39412496 49265620 98531240 130553893 197062480 261107786 522215572 652769465 1044431144 1305538930 2088862288 2611077860 5222155720 10444311440