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8137994 = 215126947
BaseRepresentation
bin11111000010110100001010
3120022110020012
4133002310022
54040403434
6450231522
7126112634
oct37026412
916273205
108137994
114659217
1228855a2
1318bc1a7
14111ba54
15aab3ce
hex7c2d0a

8137994 has 8 divisors (see below), whose sum is σ = 12288288. Its totient is φ = 4041900.

The previous prime is 8137981. The next prime is 8137999. The reversal of 8137994 is 4997318.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (8137999) by changing a digit.

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, 13172 + ... + 13775.

It is an arithmetic number, because the mean of its divisors is an integer number (1536036).

Almost surely, 28137994 is an apocalyptic number.

8137994 is a deficient number, since it is larger than the sum of its proper divisors (4150294).

8137994 is a wasteful number, since it uses less digits than its factorization.

8137994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27100.

The product of its digits is 54432, while the sum is 41.

The square root of 8137994 is about 2852.7169505578. The cubic root of 8137994 is about 201.1434007170.

The spelling of 8137994 in words is "eight million, one hundred thirty-seven thousand, nine hundred ninety-four".

Divisors: 1 2 151 302 26947 53894 4068997 8137994