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12343340020 = 2251183675977
BaseRepresentation
bin10110111111011100…
…00110101111110100
31011212020011122022111
423133232012233310
5200234343340040
65400452340404
7614610442024
oct133756065764
934766148274
1012343340020
115264548060
122485914704
1312193284bb
14851473a84
154c3990dea
hex2dfb86bf4

12343340020 has 48 divisors (see below), whose sum is σ = 28618204608. Its totient is φ = 4434402560.

The previous prime is 12343340003. The next prime is 12343340033. The reversal of 12343340020 is 2004334321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12343339973 and 12343340000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319729 + ... + 356248.

It is an arithmetic number, because the mean of its divisors is an integer number (596212596).

Almost surely, 212343340020 is an apocalyptic number.

12343340020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12343340020 is an abundant number, since it is smaller than the sum of its proper divisors (16274864588).

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

12343340020 is a wasteful number, since it uses less digits than its factorization.

12343340020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676080 (or 676078 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 12343340020 its reverse (2004334321), we get a palindrome (14347674341).

The spelling of 12343340020 in words is "twelve billion, three hundred forty-three million, three hundred forty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 83 110 166 220 332 415 830 913 1660 1826 3652 4565 9130 18260 675977 1351954 2703908 3379885 6759770 7435747 13519540 14871494 29742988 37178735 56106091 74357470 112212182 148714940 224424364 280530455 561060910 617167001 1122121820 1234334002 2468668004 3085835005 6171670010 12343340020