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13540488050 = 252270809761
BaseRepresentation
bin11001001110001001…
…10111001101110010
31021221122211001200102
430213010313031302
5210212331104200
610115335352402
7656355151355
oct144704671562
937848731612
1013540488050
1158192860a1
12275a822702
13137a36180b
1492646029c
15543b166d5
hex327137372

13540488050 has 12 divisors (see below), whose sum is σ = 25185307866. Its totient is φ = 5416195200.

The previous prime is 13540487963. The next prime is 13540488097. The reversal of 13540488050 is 5088404531.

It can be written as a sum of positive squares in 3 ways, for example, as 5853933121 + 7686554929 = 76511^2 + 87673^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13540487995 and 13540488013.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135404831 + ... + 135404930.

Almost surely, 213540488050 is an apocalyptic number.

13540488050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13540488050 is a deficient number, since it is larger than the sum of its proper divisors (11644819816).

13540488050 is a wasteful number, since it uses less digits than its factorization.

13540488050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270809773 (or 270809768 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The spelling of 13540488050 in words is "thirteen billion, five hundred forty million, four hundred eighty-eight thousand, fifty".

Divisors: 1 2 5 10 25 50 270809761 541619522 1354048805 2708097610 6770244025 13540488050