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13220112210 = 2353743276977
BaseRepresentation
bin11000100111111101…
…01110011101010010
31021010022222021122120
430103332232131102
5204033322042320
610023452515110
7645415046124
oct142376563522
937108867576
1013220112210
115674454a78
12268b47ba96
131328b7b506
148d5aa5214
15525930440
hex313fae752

13220112210 has 64 divisors (see below), whose sum is σ = 33343719552. Its totient is φ = 3350301696.

The previous prime is 13220112179. The next prime is 13220112233. The reversal of 13220112210 is 1221102231.

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 13220112210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90759 + ... + 186218.

It is an arithmetic number, because the mean of its divisors is an integer number (520995618).

Almost surely, 213220112210 is an apocalyptic number.

13220112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13220112210 is an abundant number, since it is smaller than the sum of its proper divisors (20123607342).

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

13220112210 is a wasteful number, since it uses less digits than its factorization.

13220112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277067.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 13220112210 its reverse (1221102231), we get a palindrome (14441214441).

The spelling of 13220112210 in words is "thirteen billion, two hundred twenty million, one hundred twelve thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 37 43 74 86 111 129 185 215 222 258 370 430 555 645 1110 1290 1591 3182 4773 7955 9546 15910 23865 47730 276977 553954 830931 1384885 1661862 2769770 4154655 8309310 10248149 11910011 20496298 23820022 30744447 35730033 51240745 59550055 61488894 71460066 102481490 119100110 153722235 178650165 307444470 357300330 440670407 881340814 1322011221 2203352035 2644022442 4406704070 6610056105 13220112210