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13220102232 = 233361204177
BaseRepresentation
bin11000100111111101…
…01100000001011000
31021010022221202222000
430103332230001120
5204033321232412
610023452401000
7645415005051
oct142376540130
937108852860
1013220102232
115674448527
12268b476160
131328b76acc
148d5aa1728
1552592c4dc
hex313fac058

13220102232 has 32 divisors (see below), whose sum is σ = 36722506800. Its totient is φ = 4406700672.

The previous prime is 13220102213. The next prime is 13220102281. The reversal of 13220102232 is 23220102231.

It is a super-2 number, since 2×132201022322 (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30601873 + ... + 30602304.

Almost surely, 213220102232 is an apocalyptic number.

13220102232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13220102232 is an abundant number, since it is smaller than the sum of its proper divisors (23502404568).

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

13220102232 is a wasteful number, since it uses less digits than its factorization.

13220102232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61204192 (or 61204182 counting only the distinct ones).

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

Adding to 13220102232 its reverse (23220102231), we get a palindrome (36440204463).

Subtracting 13220102232 from its reverse (23220102231), we obtain a palindrome (9999999999).

The spelling of 13220102232 in words is "thirteen billion, two hundred twenty million, one hundred two thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 61204177 122408354 183612531 244816708 367225062 489633416 550837593 734450124 1101675186 1468900248 1652512779 2203350372 3305025558 4406700744 6610051116 13220102232