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230669009 = 1087212207
BaseRepresentation
bin11011011111110…
…11101011010001
3121002001012101122
431233323223101
5433022402014
634520012025
75500440254
oct1557735321
9532035348
10230669009
1110923004a
1265301015
1338a3494c
14228c709b
15153b658e
hexdbfbad1

230669009 has 4 divisors (see below), whose sum is σ = 230882304. Its totient is φ = 230455716.

The previous prime is 230669003. The next prime is 230669017. The reversal of 230669009 is 900966032.

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.

It is a cyclic number.

It is not a de Polignac number, because 230669009 - 212 = 230664913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230669009.

It is not an unprimeable number, because it can be changed into a prime (230669003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105017 + ... + 107190.

It is an arithmetic number, because the mean of its divisors is an integer number (57720576).

Almost surely, 2230669009 is an apocalyptic number.

It is an amenable number.

230669009 is a deficient number, since it is larger than the sum of its proper divisors (213295).

230669009 is a wasteful number, since it uses less digits than its factorization.

230669009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213294.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 230669009 is about 15187.7914457633. The cubic root of 230669009 is about 613.2860458646.

The spelling of 230669009 in words is "two hundred thirty million, six hundred sixty-nine thousand, nine".

Divisors: 1 1087 212207 230669009