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1025244480 = 263513113727
BaseRepresentation
bin111101000110111…
…111110101000000
32122110011211000210
4331012333311000
54044430310410
6245422314120
734256301651
oct7506776500
92573154023
101025244480
114867a6397
12247428940
13134538750
149a23d528
156001b220
hex3d1bfd40

1025244480 has 224 divisors, whose sum is σ = 3541434624. Its totient is φ = 249790464.

The previous prime is 1025244461. The next prime is 1025244497. The reversal of 1025244480 is 844425201.

It is a super-2 number, since 2×10252444802 = 2102252487540940800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1409877 + ... + 1410603.

It is an arithmetic number, because the mean of its divisors is an integer number (15809976).

Almost surely, 21025244480 is an apocalyptic number.

1025244480 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 1025244480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1770717312).

1025244480 is an abundant number, since it is smaller than the sum of its proper divisors (2516190144).

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

1025244480 is a wasteful number, since it uses less digits than its factorization.

1025244480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 1025244480 is about 32019.4390956494. The cubic root of 1025244480 is about 1008.3449940292.

Adding to 1025244480 its reverse (844425201), we get a palindrome (1869669681).

The spelling of 1025244480 in words is "one billion, twenty-five million, two hundred forty-four thousand, four hundred eighty".