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2013440255450 = 2521325931194601
BaseRepresentation
bin11101010011001010011…
…001000010010111011010
321010111001010001120100222
4131103022121002113122
5230442011201133300
64140543420200042
7265315632535211
oct35231231022732
97114033046328
102013440255450
11706993596718
12286275099022
13117b35c00550
146d64589c078
1537592de5785
hex1d4ca6425da

2013440255450 has 48 divisors (see below), whose sum is σ = 4034634459576. Its totient is φ = 743136768000.

The previous prime is 2013440255413. The next prime is 2013440255461. The reversal of 2013440255450 is 545520443102.

It can be written as a sum of positive squares in 12 ways, for example, as 98014703329 + 1915425552121 = 313073^2 + 1383989^2 .

It is a super-2 number, since 2×20134402554502 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2013440255450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1088150 + ... + 2282750.

Almost surely, 22013440255450 is an apocalyptic number.

2013440255450 is an abundant number, since it is smaller than the sum of its proper divisors (2021194204126).

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

2013440255450 is a wasteful number, since it uses less digits than its factorization.

2013440255450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197219 (or 1197214 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 2013440255450 its reverse (545520443102), we get a palindrome (2558960698552).

The spelling of 2013440255450 in words is "two trillion, thirteen billion, four hundred forty million, two hundred fifty-five thousand, four hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 2593 5186 12965 25930 33709 64825 67418 129650 168545 337090 842725 1194601 1685450 2389202 5973005 11946010 15529813 29865025 31059626 59730050 77649065 155298130 388245325 776490650 3097600393 6195200786 15488001965 30976003930 40268805109 77440009825 80537610218 154880019650 201344025545 402688051090 1006720127725 2013440255450