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12067993 = 74340093
BaseRepresentation
bin101110000010…
…010010011001
3211201010011201
4232002102121
511042133433
61110354201
7204401440
oct56022231
924633151
1012067993
1168a2953
12405b961
132666c32
141861d57
1510d5a7d
hexb82499

12067993 has 8 divisors (see below), whose sum is σ = 14113088. Its totient is φ = 10103184.

The previous prime is 12067933. The next prime is 12068009. The reversal of 12067993 is 39976021.

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

It is not a de Polignac number, because 12067993 - 29 = 12067481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12067933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19746 + ... + 20347.

It is an arithmetic number, because the mean of its divisors is an integer number (1764136).

Almost surely, 212067993 is an apocalyptic number.

It is an amenable number.

12067993 is a deficient number, since it is larger than the sum of its proper divisors (2045095).

12067993 is an equidigital number, since it uses as much as digits as its factorization.

12067993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40143.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 12067993 is about 3473.9016969396. The cubic root of 12067993 is about 229.3744374805.

The spelling of 12067993 in words is "twelve million, sixty-seven thousand, nine hundred ninety-three".

Divisors: 1 7 43 301 40093 280651 1723999 12067993