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1242386 = 237103163
BaseRepresentation
bin100101111010100010010
32100010020022
410233110102
5304224021
642343442
713363055
oct4572422
92303208
101242386
11779472
124bab82
13346652
14244a9c
151981ab
hex12f512

1242386 has 16 divisors (see below), whose sum is σ = 1944384. Its totient is φ = 594864.

The previous prime is 1242379. The next prime is 1242403. The reversal of 1242386 is 6832421.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 7541 + ... + 7703.

It is an arithmetic number, because the mean of its divisors is an integer number (121524).

21242386 is an apocalyptic number.

1242386 is a deficient number, since it is larger than the sum of its proper divisors (701998).

1242386 is a wasteful number, since it uses less digits than its factorization.

1242386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305.

The product of its digits is 2304, while the sum is 26.

The square root of 1242386 is about 1114.6237033187. The cubic root of 1242386 is about 107.5025706975.

The spelling of 1242386 in words is "one million, two hundred forty-two thousand, three hundred eighty-six".

Divisors: 1 2 37 74 103 163 206 326 3811 6031 7622 12062 16789 33578 621193 1242386