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13103020144 = 242335606033
BaseRepresentation
bin11000011010000000…
…00011100001110000
31020211011122101112101
430031000003201300
5203313333121034
610004111110144
7642463555624
oct141500034160
936734571471
1013103020144
115614349a75
122658212354
13130a832076
148c4305184
1551a501514
hex30d003870

13103020144 has 20 divisors (see below), whose sum is σ = 26490889296. Its totient is φ = 6266661632.

The previous prime is 13103020129. The next prime is 13103020163. The reversal of 13103020144 is 44102030131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17802649 + ... + 17803384.

Almost surely, 213103020144 is an apocalyptic number.

It is an amenable number.

13103020144 is an abundant number, since it is smaller than the sum of its proper divisors (13387869152).

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

13103020144 is a wasteful number, since it uses less digits than its factorization.

13103020144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35606064 (or 35606058 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13103020144 its reverse (44102030131), we get a palindrome (57205050275).

The spelling of 13103020144 in words is "thirteen billion, one hundred three million, twenty thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 23 46 92 184 368 35606033 71212066 142424132 284848264 569696528 818938759 1637877518 3275755036 6551510072 13103020144