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13140124040 = 235437639607
BaseRepresentation
bin11000011110011011…
…00110000110001000
31020220202110110111202
430033031212012020
5203402332432130
610011514243332
7643424132351
oct141715460610
936822413452
1013140124040
11563329174a
122668726548
131315423634
148c9202d28
1551d8d0145
hex30f366188

13140124040 has 32 divisors (see below), whose sum is σ = 30252847680. Its totient is φ = 5133815232.

The previous prime is 13140124033. The next prime is 13140124091. The reversal of 13140124040 is 4042104131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3818084 + ... + 3821523.

It is an arithmetic number, because the mean of its divisors is an integer number (945401490).

Almost surely, 213140124040 is an apocalyptic number.

13140124040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13140124040 is an abundant number, since it is smaller than the sum of its proper divisors (17112723640).

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

13140124040 is a wasteful number, since it uses less digits than its factorization.

13140124040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7639661 (or 7639657 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 13140124040 its reverse (4042104131), we get a palindrome (17182228171).

The spelling of 13140124040 in words is "thirteen billion, one hundred forty million, one hundred twenty-four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 215 344 430 860 1720 7639607 15279214 30558428 38198035 61116856 76396070 152792140 305584280 328503101 657006202 1314012404 1642515505 2628024808 3285031010 6570062020 13140124040