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13103013220 = 2251159559151
BaseRepresentation
bin11000011010000000…
…00001110101100100
31020211011122001000221
430031000001311210
5203313332410340
610004111014124
7642463526503
oct141500016544
936734561027
1013103013220
115614344850
12265820a344
13130a82bb7b
148c430283a
1551a4ee44a
hex30d001d64

13103013220 has 24 divisors (see below), whose sum is σ = 30017812608. Its totient is φ = 4764732000.

The previous prime is 13103013199. The next prime is 13103013223. The reversal of 13103013220 is 2231030131.

It is a junction number, because it is equal to n+sod(n) for n = 13103013194 and 13103013203.

It is not an unprimeable number, because it can be changed into a prime (13103013223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29779356 + ... + 29779795.

It is an arithmetic number, because the mean of its divisors is an integer number (1250742192).

Almost surely, 213103013220 is an apocalyptic number.

13103013220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13103013220 is an abundant number, since it is smaller than the sum of its proper divisors (16914799388).

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

13103013220 is a wasteful number, since it uses less digits than its factorization.

13103013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59559171 (or 59559169 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13103013220 its reverse (2231030131), we get a palindrome (15334043351).

The spelling of 13103013220 in words is "thirteen billion, one hundred three million, thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 59559151 119118302 238236604 297795755 595591510 655150661 1191183020 1310301322 2620602644 3275753305 6551506610 13103013220