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13103001020 = 2252932236007
BaseRepresentation
bin11000011001111111…
…11110110110111100
31020211011121102022002
430030333332312330
5203313332013040
610004110441432
7642463446104
oct141477766674
936734542262
1013103001020
11561433666a
122658203278
13130a826455
148c42dc204
1551a4eaa15
hex30cffedbc

13103001020 has 24 divisors (see below), whose sum is σ = 27610226784. Its totient is φ = 5223310016.

The previous prime is 13103001019. The next prime is 13103001047. The reversal of 13103001020 is 2010030131.

It is a junction number, because it is equal to n+sod(n) for n = 13103000992 and 13103001010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112144 + ... + 1123863.

It is an arithmetic number, because the mean of its divisors is an integer number (1150426116).

Almost surely, 213103001020 is an apocalyptic number.

13103001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13103001020 is an abundant number, since it is smaller than the sum of its proper divisors (14507225764).

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

13103001020 is a wasteful number, since it uses less digits than its factorization.

13103001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236309 (or 2236307 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 13103001020 its reverse (2010030131), we get a palindrome (15113031151).

The spelling of 13103001020 in words is "thirteen billion, one hundred three million, one thousand, twenty".

Divisors: 1 2 4 5 10 20 293 586 1172 1465 2930 5860 2236007 4472014 8944028 11180035 22360070 44720140 655150051 1310300102 2620600204 3275750255 6551500510 13103001020