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37680009 = 312560003
BaseRepresentation
bin1000111110111…
…1001110001001
32121220100020220
42033233032021
534121230014
63423340253
7635163153
oct217571611
977810226
1037680009
111a2a6604
1210751689
137a63883
14500bad3
1534946a9
hex23ef389

37680009 has 4 divisors (see below), whose sum is σ = 50240016. Its totient is φ = 25120004.

The previous prime is 37680001. The next prime is 37680029. The reversal of 37680009 is 90008673.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90008673 = 330002891.

It is a cyclic number.

It is not a de Polignac number, because 37680009 - 23 = 37680001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (37680001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6279999 + ... + 6280004.

It is an arithmetic number, because the mean of its divisors is an integer number (12560004).

Almost surely, 237680009 is an apocalyptic number.

It is an amenable number.

37680009 is a deficient number, since it is larger than the sum of its proper divisors (12560007).

37680009 is a wasteful number, since it uses less digits than its factorization.

37680009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12560006.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 37680009 is about 6138.4044343787. The cubic root of 37680009 is about 335.2511934967.

The spelling of 37680009 in words is "thirty-seven million, six hundred eighty thousand, nine".

Divisors: 1 3 12560003 37680009