Search a number
-
+
9000137 = 31290327
BaseRepresentation
bin100010010101…
…010011001001
3121221020212102
4202111103021
54301001022
6520523145
7136333316
oct42252311
917836772
109000137
115097a33
1230204b5
131b31733
1412a3d0d
15bcba92
hex8954c9

9000137 has 4 divisors (see below), whose sum is σ = 9290496. Its totient is φ = 8709780.

The previous prime is 9000127. The next prime is 9000143. The reversal of 9000137 is 7310009.

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: 7310009 = 71044287.

It is a cyclic number.

It is not a de Polignac number, because 9000137 - 210 = 8999113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9000127) 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, 145133 + ... + 145194.

It is an arithmetic number, because the mean of its divisors is an integer number (2322624).

Almost surely, 29000137 is an apocalyptic number.

It is an amenable number.

9000137 is a deficient number, since it is larger than the sum of its proper divisors (290359).

9000137 is a wasteful number, since it uses less digits than its factorization.

9000137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290358.

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 9000137 is about 3000.0228332464. The cubic root of 9000137 is about 208.0094377498.

The spelling of 9000137 in words is "nine million, one hundred thirty-seven", and thus it is an aban number.

Divisors: 1 31 290327 9000137