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5450015440 = 245531285381
BaseRepresentation
bin1010001001101100…
…01010001011010000
3112001211011110200201
411010312022023100
542130200443230
62300444424544
7252025236562
oct50466121320
915054143621
105450015440
1123474342a1
121081248154
1368b16260c
14399b65332
1521d6e95ca
hex144d8a2d0

5450015440 has 40 divisors (see below), whose sum is σ = 12910376808. Its totient is φ = 2138872320.

The previous prime is 5450015429. The next prime is 5450015503. The reversal of 5450015440 is 445100545.

It can be written as a sum of positive squares in 4 ways, for example, as 851005584 + 4599009856 = 29172^2 + 67816^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 5450015399 and 5450015408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638451 + ... + 646930.

Almost surely, 25450015440 is an apocalyptic number.

It is an amenable number.

5450015440 is an abundant number, since it is smaller than the sum of its proper divisors (7460361368).

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

5450015440 is a wasteful number, since it uses less digits than its factorization.

5450015440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285447 (or 1285441 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 5450015440 is about 73824.2198739682. The cubic root of 5450015440 is about 1759.8105254015.

Adding to 5450015440 its reverse (445100545), we get a palindrome (5895115985).

The spelling of 5450015440 in words is "five billion, four hundred fifty million, fifteen thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 53 80 106 212 265 424 530 848 1060 2120 4240 1285381 2570762 5141524 6426905 10283048 12853810 20566096 25707620 51415240 68125193 102830480 136250386 272500772 340625965 545001544 681251930 1090003088 1362503860 2725007720 5450015440