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12470842 = 217533557
BaseRepresentation
bin101111100100…
…101000111010
3212110120210001
4233210220322
511143031332
61123143214
7211000066
oct57445072
925416701
1012470842
11704858a
124214b0a
1327783c7
141928aa6
1511650e7
hexbe4a3a

12470842 has 8 divisors (see below), whose sum is σ = 18722196. Its totient is φ = 6230112.

The previous prime is 12470831. The next prime is 12470851. The reversal of 12470842 is 24807421.

It can be written as a sum of positive squares in 2 ways, for example, as 9369721 + 3101121 = 3061^2 + 1761^2 .

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 12470842.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1728 + ... + 5284.

Almost surely, 212470842 is an apocalyptic number.

12470842 is a deficient number, since it is larger than the sum of its proper divisors (6251354).

12470842 is a wasteful number, since it uses less digits than its factorization.

12470842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 12470842 is about 3531.4079345213. The cubic root of 12470842 is about 231.8988485919.

It can be divided in two parts, 124708 and 42, that added together give a triangular number (124750 = T499).

The spelling of 12470842 in words is "twelve million, four hundred seventy thousand, eight hundred forty-two".

Divisors: 1 2 1753 3506 3557 7114 6235421 12470842