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8136942 = 2311314197
BaseRepresentation
bin11111000010100011101110
3120022101210020
4133002203232
54040340232
6450223010
7126106602
oct37024356
916271706
108136942
114658450
122884a66
1318bb878
14111b502
15aaae2c
hex7c28ee

8136942 has 64 divisors (see below), whose sum is σ = 18966528. Its totient is φ = 2304000.

The previous prime is 8136913. The next prime is 8136943. The reversal of 8136942 is 2496318.

It is a super-2 number, since 2×81369422 = 132419650222728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8136943) 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 31 ways as a sum of consecutive naturals, for example, 83838 + ... + 83934.

It is an arithmetic number, because the mean of its divisors is an integer number (296352).

Almost surely, 28136942 is an apocalyptic number.

8136942 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 8136942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9483264).

8136942 is an abundant number, since it is smaller than the sum of its proper divisors (10829586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8136942 is a wasteful number, since it uses less digits than its factorization.

8136942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185.

The product of its digits is 10368, while the sum is 33.

The square root of 8136942 is about 2852.5325589728. The cubic root of 8136942 is about 201.1347330619.

The spelling of 8136942 in words is "eight million, one hundred thirty-six thousand, nine hundred forty-two".

Divisors: 1 2 3 6 11 22 31 33 41 62 66 82 93 97 123 186 194 246 291 341 451 582 682 902 1023 1067 1271 1353 2046 2134 2542 2706 3007 3201 3813 3977 6014 6402 7626 7954 9021 11931 13981 18042 23862 27962 33077 41943 43747 66154 83886 87494 99231 123287 131241 198462 246574 262482 369861 739722 1356157 2712314 4068471 8136942