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12302230312 = 232137719597
BaseRepresentation
bin10110111010100010…
…10010001100101000
31011202100211001101201
423131101102030220
5200143332332222
65352423253544
7613601142451
oct133521221450
934670731351
1012302230312
115243319799
122473baa2b4
131210963828
14849c12128
154c0070427
hex2dd452328

12302230312 has 16 divisors (see below), whose sum is σ = 23077507860. Its totient is φ = 6148228224.

The previous prime is 12302230301. The next prime is 12302230321. The reversal of 12302230312 is 21303220321.

It can be written as a sum of positive squares in 2 ways, for example, as 9247899556 + 3054330756 = 96166^2 + 55266^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12302230312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342703 + ... + 376894.

Almost surely, 212302230312 is an apocalyptic number.

It is an amenable number.

12302230312 is a deficient number, since it is larger than the sum of its proper divisors (10775277548).

12302230312 is a wasteful number, since it uses less digits than its factorization.

12302230312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721740 (or 721736 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12302230312 its reverse (21303220321), we get a palindrome (33605450633).

Subtracting 12302230312 from its reverse (21303220321), we obtain a palindrome (9000990009).

The spelling of 12302230312 in words is "twelve billion, three hundred two million, two hundred thirty thousand, three hundred twelve".

Divisors: 1 2 4 8 2137 4274 8548 17096 719597 1439194 2878388 5756776 1537778789 3075557578 6151115156 12302230312