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13103222220 = 22325116617789
BaseRepresentation
bin11000011010000001…
…10100110111001100
31020211012000122201200
430031000310313030
5203313411102340
610004115305500
7642465360024
oct141500646714
936735018650
1013103222220
115614477880
1226582ab290
13130a8a303a
148c4358a84
1551a541330
hex30d034dcc

13103222220 has 72 divisors (see below), whose sum is σ = 43359760080. Its totient is φ = 3176538240.

The previous prime is 13103222203. The next prime is 13103222309. The reversal of 13103222220 is 2222230131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13103222193 and 13103222202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3306915 + ... + 3310874.

It is an arithmetic number, because the mean of its divisors is an integer number (602218890).

Almost surely, 213103222220 is an apocalyptic number.

13103222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13103222220 is an abundant number, since it is smaller than the sum of its proper divisors (30256537860).

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

13103222220 is a wasteful number, since it uses less digits than its factorization.

13103222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6617815 (or 6617810 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13103222220 its reverse (2222230131), we get a palindrome (15325452351).

The spelling of 13103222220 in words is "thirteen billion, one hundred three million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 90 99 110 132 165 180 198 220 330 396 495 660 990 1980 6617789 13235578 19853367 26471156 33088945 39706734 59560101 66177890 72795679 79413468 99266835 119120202 132355780 145591358 198533670 218387037 238240404 291182716 297800505 363978395 397067340 436774074 595601010 655161111 727956790 873548148 1091935185 1191202020 1310322222 1455913580 2183870370 2620644444 3275805555 4367740740 6551611110 13103222220