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12020367268 = 22713283116689
BaseRepresentation
bin10110011000111100…
…00011111110100100
31011000201102220222201
423030132003332210
5144104203223033
65304434104244
7603606302350
oct131436037644
934021386881
1012020367268
115109202928
1223b571b084
131197446170
14820600460
154a544547d
hex2cc783fa4

12020367268 has 48 divisors (see below), whose sum is σ = 25981728640. Its totient is φ = 4738466304.

The previous prime is 12020367253. The next prime is 12020367269. The reversal of 12020367268 is 86276302021.

It is not an unprimeable number, because it can be changed into a prime (12020367269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44668 + ... + 161356.

Almost surely, 212020367268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12020367268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12990864320).

12020367268 is an abundant number, since it is smaller than the sum of its proper divisors (13961361372).

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

12020367268 is a wasteful number, since it uses less digits than its factorization.

12020367268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116996 (or 116994 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

Adding to 12020367268 its reverse (86276302021), we get a palindrome (98296669289).

The spelling of 12020367268 in words is "twelve billion, twenty million, three hundred sixty-seven thousand, two hundred sixty-eight".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 283 364 566 1132 1981 3679 3962 7358 7924 14716 25753 51506 103012 116689 233378 466756 816823 1516957 1633646 3033914 3267292 6067828 10618699 21237398 33022987 42474796 66045974 132091948 231160909 429298831 462321818 858597662 924643636 1717195324 3005091817 6010183634 12020367268