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13020221110 = 2513234799091
BaseRepresentation
bin11000010000001000…
…01100111010110110
31020121101211202121111
430020010030322312
5203131134033420
65551552305234
7640440024211
oct141004147266
936541752544
1013020221110
115581636916
12263454221a
1312c6631960
148b7310778
155130e845a
hex30810ceb6

13020221110 has 64 divisors (see below), whose sum is σ = 26394439680. Its totient is φ = 4588341120.

The previous prime is 13020221101. The next prime is 13020221113. The reversal of 13020221110 is 1112202031.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020221113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1427665 + ... + 1436755.

It is an arithmetic number, because the mean of its divisors is an integer number (412413120).

Almost surely, 213020221110 is an apocalyptic number.

13020221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13020221110 is an abundant number, since it is smaller than the sum of its proper divisors (13374218570).

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

13020221110 is a wasteful number, since it uses less digits than its factorization.

13020221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9613.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 13020221110 its reverse (1112202031), we get a palindrome (14132423141).

The spelling of 13020221110 in words is "thirteen billion, twenty million, two hundred twenty-one thousand, one hundred ten".

Divisors: 1 2 5 10 13 23 26 46 65 115 130 230 299 479 598 958 1495 2395 2990 4790 6227 9091 11017 12454 18182 22034 31135 45455 55085 62270 90910 110170 118183 143221 209093 236366 286442 418186 590915 716105 1045465 1181830 1432210 2090930 2718209 4354589 5436418 8709178 13591045 21772945 27182090 43545890 56609657 100155547 113219314 200311094 283048285 500777735 566096570 1001555470 1302022111 2604044222 6510110555 13020221110