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12720614 = 219334753
BaseRepresentation
bin110000100001…
…100111100110
3212221021101212
4300201213212
511224024424
61132351422
7213060224
oct60414746
925837355
1012720614
1171a9205
124315572
132834cba
141991b14
1511b410e
hexc219e6

12720614 has 8 divisors (see below), whose sum is σ = 20085240. Its totient is φ = 6025536.

The previous prime is 12720601. The next prime is 12720649. The reversal of 12720614 is 41602721.

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 12720614.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167339 + ... + 167414.

It is an arithmetic number, because the mean of its divisors is an integer number (2510655).

Almost surely, 212720614 is an apocalyptic number.

12720614 is a deficient number, since it is larger than the sum of its proper divisors (7364626).

12720614 is a wasteful number, since it uses less digits than its factorization.

12720614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334774.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 12720614 is about 3566.5969775123. The cubic root of 12720614 is about 233.4368198552.

The spelling of 12720614 in words is "twelve million, seven hundred twenty thousand, six hundred fourteen".

Divisors: 1 2 19 38 334753 669506 6360307 12720614