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12201230442 = 232033538407
BaseRepresentation
bin10110101110100000…
…00000000001101010
31011111022202201121210
423113100000001222
5144442003333232
65334414413550
7611233514262
oct132720000152
934438681553
1012201230442
1151a1305025
1224462012b6
1311c5a5cbab
1483a6407a2
154b626e5cc
hex2d740006a

12201230442 has 8 divisors (see below), whose sum is σ = 24402460896. Its totient is φ = 4067076812.

The previous prime is 12201230441. The next prime is 12201230579. The reversal of 12201230442 is 24403210221.

It is a sphenic number, since it is the product of 3 distinct primes.

12201230442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12201230441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016769198 + ... + 1016769209.

It is an arithmetic number, because the mean of its divisors is an integer number (3050307612).

Almost surely, 212201230442 is an apocalyptic number.

12201230442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12201230442 is a wasteful number, since it uses less digits than its factorization.

12201230442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033538412.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12201230442 its reverse (24403210221), we get a palindrome (36604440663).

The spelling of 12201230442 in words is "twelve billion, two hundred one million, two hundred thirty thousand, four hundred forty-two".

Divisors: 1 2 3 6 2033538407 4067076814 6100615221 12201230442