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12002022234 = 23524695519
BaseRepresentation
bin10110010110110000…
…00101001101011010
31010222102220220100000
423023120011031122
5144040004202414
65302540553430
7603264335316
oct131330051532
933872826300
1012002022234
1150a9912a44
1223ab552876
1311936c2107
1481bdc6b46
154a3a1eb09
hex2cb60535a

12002022234 has 24 divisors (see below), whose sum is σ = 26967507840. Its totient is φ = 4000673916.

The previous prime is 12002022233. The next prime is 12002022259. The reversal of 12002022234 is 43222020021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12002022233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12347274 + ... + 12348245.

It is an arithmetic number, because the mean of its divisors is an integer number (1123646160).

Almost surely, 212002022234 is an apocalyptic number.

12002022234 is an abundant number, since it is smaller than the sum of its proper divisors (14965485606).

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

12002022234 is an equidigital number, since it uses as much as digits as its factorization.

12002022234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24695536 (or 24695524 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 12002022234 its reverse (43222020021), we get a palindrome (55224042255).

The spelling of 12002022234 in words is "twelve billion, two million, twenty-two thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 24695519 49391038 74086557 148173114 222259671 444519342 666779013 1333558026 2000337039 4000674078 6001011117 12002022234