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12019274 = 243139759
BaseRepresentation
bin101101110110…
…011001001010
3211121122100022
4231312121022
511034104044
61105340442
7204106421
oct55663112
924548308
1012019274
11686a293
124037722
13264a9c7
14184c2b8
1510c63ee
hexb7664a

12019274 has 8 divisors (see below), whose sum is σ = 18448320. Its totient is φ = 5869836.

The previous prime is 12019261. The next prime is 12019277. The reversal of 12019274 is 47291021.

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

It is a super-3 number, since 3×120192743 (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12019277) by changing a digit.

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, 69794 + ... + 69965.

It is an arithmetic number, because the mean of its divisors is an integer number (2306040).

Almost surely, 212019274 is an apocalyptic number.

12019274 is a deficient number, since it is larger than the sum of its proper divisors (6429046).

12019274 is a wasteful number, since it uses less digits than its factorization.

12019274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139804.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 12019274 is about 3466.8824612323. The cubic root of 12019274 is about 229.0653564020.

The spelling of 12019274 in words is "twelve million, nineteen thousand, two hundred seventy-four".

Divisors: 1 2 43 86 139759 279518 6009637 12019274