Search a number
-
+
230906767 = 72131721323
BaseRepresentation
bin11011100001101…
…01101110001111
3121002111021112111
431300311232033
5433103004032
634525044451
75502450400
oct1560655617
9532437474
10230906767
11109382743
12653b6727
1338ab8c30
14229499a7
1515411c47
hexdc35b8f

230906767 has 24 divisors (see below), whose sum is σ = 306297936. Its totient is φ = 171940608.

The previous prime is 230906737. The next prime is 230906771. The reversal of 230906767 is 767609032.

It is not a de Polignac number, because 230906767 - 227 = 96689039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230906717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168 + ... + 21490.

It is an arithmetic number, because the mean of its divisors is an integer number (12762414).

Almost surely, 2230906767 is an apocalyptic number.

230906767 is a deficient number, since it is larger than the sum of its proper divisors (75391169).

230906767 is a wasteful number, since it uses less digits than its factorization.

230906767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21367 (or 21360 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 230906767 is about 15195.6167035103. The cubic root of 230906767 is about 613.4966847576.

The spelling of 230906767 in words is "two hundred thirty million, nine hundred six thousand, seven hundred sixty-seven".

Divisors: 1 7 13 17 49 91 119 221 637 833 1547 10829 21323 149261 277199 362491 1044827 1940393 2537437 4712383 13582751 17762059 32986681 230906767