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12348890 = 251234889
BaseRepresentation
bin101111000110…
…110111011010
3212020101111022
4233012313122
511130131030
61120402442
7206651411
oct57066732
925211438
1012348890
116a749a4
124176422
132734a48
1418d6478
15113dde5
hexbc6dda

12348890 has 8 divisors (see below), whose sum is σ = 22228020. Its totient is φ = 4939552.

The previous prime is 12348887. The next prime is 12348893. The reversal of 12348890 is 9884321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12348887) and next prime (12348893).

It can be written as a sum of positive squares in 2 ways, for example, as 11621281 + 727609 = 3409^2 + 853^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12348890.

It is not an unprimeable number, because it can be changed into a prime (12348893) 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, 617435 + ... + 617454.

Almost surely, 212348890 is an apocalyptic number.

12348890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12348890 is a deficient number, since it is larger than the sum of its proper divisors (9879130).

12348890 is a wasteful number, since it uses less digits than its factorization.

12348890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234896.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 12348890 is about 3514.0987464782. The cubic root of 12348890 is about 231.1404604170.

The spelling of 12348890 in words is "twelve million, three hundred forty-eight thousand, eight hundred ninety".

Divisors: 1 2 5 10 1234889 2469778 6174445 12348890