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12386542 = 271098117
BaseRepresentation
bin101111010000…
…000011101110
3212022022010211
4233100003232
511132332132
61121253034
7210166240
oct57200356
925268124
1012386542
116aa0213
12419417a
132748c1c
141906090
15114a147
hexbd00ee

12386542 has 16 divisors (see below), whose sum is σ = 21431520. Its totient is φ = 5259168.

The previous prime is 12386531. The next prime is 12386573. The reversal of 12386542 is 24568321.

12386542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2533 + ... + 5584.

It is an arithmetic number, because the mean of its divisors is an integer number (1339470).

Almost surely, 212386542 is an apocalyptic number.

12386542 is a deficient number, since it is larger than the sum of its proper divisors (9044978).

12386542 is a wasteful number, since it uses less digits than its factorization.

12386542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8235.

The product of its digits is 11520, while the sum is 31.

The square root of 12386542 is about 3519.4519459711. The cubic root of 12386542 is about 231.3751392820.

The spelling of 12386542 in words is "twelve million, three hundred eighty-six thousand, five hundred forty-two".

Divisors: 1 2 7 14 109 218 763 1526 8117 16234 56819 113638 884753 1769506 6193271 12386542