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13103102220 = 22351316798849
BaseRepresentation
bin11000011010000000…
…10111100100001100
31020211011210120010020
430031000113210030
5203313343232340
610004112542140
7642464350125
oct141500274414
936734716106
1013103102220
1156143a56aa
122658251950
13130a860530
148c432704c
1551a51a9d0
hex30d01790c

13103102220 has 48 divisors (see below), whose sum is σ = 39510895200. Its totient is φ = 3225378816.

The previous prime is 13103102213. The next prime is 13103102249. The reversal of 13103102220 is 2220130131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13103102220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8398645 + ... + 8400204.

It is an arithmetic number, because the mean of its divisors is an integer number (823143650).

Almost surely, 213103102220 is an apocalyptic number.

13103102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13103102220 is an abundant number, since it is smaller than the sum of its proper divisors (26407792980).

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

13103102220 is a wasteful number, since it uses less digits than its factorization.

13103102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16798874 (or 16798872 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13103102220 its reverse (2220130131), we get a palindrome (15323232351).

The spelling of 13103102220 in words is "thirteen billion, one hundred three million, one hundred two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 16798849 33597698 50396547 67195396 83994245 100793094 167988490 201586188 218385037 251982735 335976980 436770074 503965470 655155111 873540148 1007930940 1091925185 1310310222 2183850370 2620620444 3275775555 4367700740 6551551110 13103102220