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7240489344 = 273311283673
BaseRepresentation
bin1101011111001000…
…10001100110000000
3200200121020222011000
412233210101212000
5104312031124334
63154244452000
7344266100244
oct65744214600
920617228130
107240489344
1130860818a0
1214a09aa000
138b509872a
144c987c424
152c59c0299
hex1af911980

7240489344 has 256 divisors, whose sum is σ = 23429318400. Its totient is φ = 2183086080.

The previous prime is 7240489327. The next prime is 7240489349. The reversal of 7240489344 is 4439840427.

It is a self number, because there is not a number n which added to its sum of digits gives 7240489344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7240489349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10758192 + ... + 10758864.

It is an arithmetic number, because the mean of its divisors is an integer number (91520775).

Almost surely, 27240489344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7240489344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11714659200).

7240489344 is an abundant number, since it is smaller than the sum of its proper divisors (16188829056).

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

7240489344 is a wasteful number, since it uses less digits than its factorization.

7240489344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 972 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The square root of 7240489344 is about 85091.0650068502. The cubic root of 7240489344 is about 1934.5916378804.

The spelling of 7240489344 in words is "seven billion, two hundred forty million, four hundred eighty-nine thousand, three hundred forty-four".