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12230031000 = 2335311487761
BaseRepresentation
bin10110110001111011…
…10111011010011000
31011120022221221120010
423120331313122120
5200021341443000
65341324001520
7612033356025
oct133075673230
934508857503
1012230031000
115206596340
1224539902a0
1311cba04c45
148403ba54c
154b8a5cd50
hex2d8f77698

12230031000 has 256 divisors, whose sum is σ = 41766865920. Its totient is φ = 2954880000.

The previous prime is 12230030957. The next prime is 12230031007. The reversal of 12230031000 is 13003221.

It is a happy number.

It is a super-2 number, since 2×122300310002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230031007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16070620 + ... + 16071380.

It is an arithmetic number, because the mean of its divisors is an integer number (163151820).

Almost surely, 212230031000 is an apocalyptic number.

12230031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12230031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20883432960).

12230031000 is an abundant number, since it is smaller than the sum of its proper divisors (29536834920).

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

12230031000 is a wasteful number, since it uses less digits than its factorization.

12230031000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 12230031000 its reverse (13003221), we get a palindrome (12243034221).

The spelling of 12230031000 in words is "twelve billion, two hundred thirty million, thirty-one thousand".