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12347073490 = 251234707349
BaseRepresentation
bin10110111111111000…
…10110001111010010
31011212111012022200011
423133330112033102
5200241322322430
65401104345134
7614654251543
oct133774261722
934774168604
1012347073490
115266668074
1224870151aa
13121a03495b
14851b664ca
154c3e7c22a
hex2dff163d2

12347073490 has 8 divisors (see below), whose sum is σ = 22224732300. Its totient is φ = 4938829392.

The previous prime is 12347073461. The next prime is 12347073499. The reversal of 12347073490 is 9437074321.

It can be written as a sum of positive squares in 2 ways, for example, as 9906021841 + 2441051649 = 99529^2 + 49407^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12347073499) 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, 617353665 + ... + 617353684.

Almost surely, 212347073490 is an apocalyptic number.

12347073490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12347073490 is a deficient number, since it is larger than the sum of its proper divisors (9877658810).

12347073490 is a wasteful number, since it uses less digits than its factorization.

12347073490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234707356.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 12347073490 in words is "twelve billion, three hundred forty-seven million, seventy-three thousand, four hundred ninety".

Divisors: 1 2 5 10 1234707349 2469414698 6173536745 12347073490