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10801440000 = 28325413577
BaseRepresentation
bin10100000111101000…
…01110010100000000
31000212202211000010100
422003310032110000
5134110132040000
64543452202400
7531445503501
oct120364162400
930782730110
1010801440000
11464314981a
122115469400
131031a55920
14746784ba8
1543341ba00
hex283d0e500

10801440000 has 540 divisors, whose sum is σ = 41982776836. Its totient is φ = 2654208000.

The previous prime is 10801439953. The next prime is 10801440029. The reversal of 10801440000 is 4410801.

It can be written as a sum of positive squares in 10 ways, for example, as 6768681984 + 4032758016 = 82272^2 + 63504^2 .

It is a super-2 number, since 2×108014400002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 18719712 + ... + 18720288.

Almost surely, 210801440000 is an apocalyptic number.

10801440000 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 10801440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20991388418).

10801440000 is an abundant number, since it is smaller than the sum of its proper divisors (31181336836).

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

10801440000 is an equidigital number, since it uses as much as digits as its factorization.

10801440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10801440000 its reverse (4410801), we get a palindrome (10805850801).

The spelling of 10801440000 in words is "ten billion, eight hundred one million, four hundred forty thousand".