Search a number
-
+
12020221303132 = 227809530647241
BaseRepresentation
bin1010111011101010110100…
…0001010101100101011100
31120120010021220000201212111
42232322231001111211130
53033414403123200012
641322002522443404
72350301201161030
oct256725501254534
946503256021774
1012020221303132
113914824617179
121421723963564
1369266aba0103
142d7ad34301c0
1515ca18302ba7
hexaeead05595c

12020221303132 has 24 divisors (see below), whose sum is σ = 24070158897120. Its totient is φ = 5145155639040.

The previous prime is 12020221303117. The next prime is 12020221303157. The reversal of 12020221303132 is 23130312202021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265300969 + ... + 265346272.

It is an arithmetic number, because the mean of its divisors is an integer number (1002923287380).

Almost surely, 212020221303132 is an apocalyptic number.

It is an amenable number.

12020221303132 is an abundant number, since it is smaller than the sum of its proper divisors (12049937593988).

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

12020221303132 is a wasteful number, since it uses less digits than its factorization.

12020221303132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530648061 (or 530648059 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12020221303132 its reverse (23130312202021), we get a palindrome (35150533505153).

The spelling of 12020221303132 in words is "twelve trillion, twenty billion, two hundred twenty-one million, three hundred three thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 809 1618 3236 5663 11326 22652 530647241 1061294482 2122588964 3714530687 7429061374 14858122748 429293617969 858587235938 1717174471876 3005055325783 6010110651566 12020221303132