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12210440304 = 243435915911
BaseRepresentation
bin10110101111100110…
…01000100001110000
31011111222002122011210
423113303020201300
5200001333042204
65335344040120
7611405013216
oct132763104160
934458078153
1012210440304
1151a6525587
122449303040
1311c7935c0a
1483b95acb6
154b6e8d389
hex2d7cc8870

12210440304 has 40 divisors (see below), whose sum is σ = 32277215872. Its totient is φ = 3975491520.

The previous prime is 12210440287. The next prime is 12210440317. The reversal of 12210440304 is 40304401221.

It is a super-2 number, since 2×122104403042 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2955892 + ... + 2960019.

Almost surely, 212210440304 is an apocalyptic number.

It is an amenable number.

12210440304 is an abundant number, since it is smaller than the sum of its proper divisors (20066775568).

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

12210440304 is a wasteful number, since it uses less digits than its factorization.

12210440304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5915965 (or 5915959 counting only the distinct ones).

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

Adding to 12210440304 its reverse (40304401221), we get a palindrome (52514841525).

The spelling of 12210440304 in words is "twelve billion, two hundred ten million, four hundred forty thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 43 48 86 129 172 258 344 516 688 1032 2064 5915911 11831822 17747733 23663644 35495466 47327288 70990932 94654576 141981864 254384173 283963728 508768346 763152519 1017536692 1526305038 2035073384 3052610076 4070146768 6105220152 12210440304