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13220022132 = 22321934873907
BaseRepresentation
bin11000100111111100…
…11000011101110100
31021010022210201002100
430103332120131310
5204033311202012
610023450542100
7645414222402
oct142376303564
937108721070
1013220022132
1156743a3329
12268b437930
131328b49505
148d5a80472
155259138dc
hex313f98774

13220022132 has 72 divisors (see below), whose sum is σ = 33668014016. Its totient is φ = 4373720064.

The previous prime is 13220022131. The next prime is 13220022181. The reversal of 13220022132 is 23122002231.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220022131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3381723 + ... + 3385629.

Almost surely, 213220022132 is an apocalyptic number.

13220022132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13220022132 is an abundant number, since it is smaller than the sum of its proper divisors (20447991884).

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

13220022132 is a wasteful number, since it uses less digits than its factorization.

13220022132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4597 (or 4592 counting only the distinct ones).

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

Adding to 13220022132 its reverse (23122002231), we get a palindrome (36342024363).

The spelling of 13220022132 in words is "thirteen billion, two hundred twenty million, twenty-two thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 193 386 487 579 772 974 1158 1461 1737 1948 2316 2922 3474 3907 4383 5844 6948 7814 8766 11721 15628 17532 23442 35163 46884 70326 93991 140652 187982 281973 375964 563946 754051 845919 1127892 1508102 1691838 1902709 2262153 3016204 3383676 3805418 4524306 5708127 6786459 7610836 9048612 11416254 13572918 17124381 22832508 27145836 34248762 68497524 367222837 734445674 1101668511 1468891348 2203337022 3305005533 4406674044 6610011066 13220022132