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230982133 = 1511529683
BaseRepresentation
bin11011100010010…
…00000111110101
3121002122002220211
431301020013311
5433112412013
634530425421
75503213204
oct1561100765
9532562824
10230982133
11109424328
1265432271
1338b14325
142296923b
151542923d
hexdc481f5

230982133 has 4 divisors (see below), whose sum is σ = 232511968. Its totient is φ = 229452300.

The previous prime is 230982121. The next prime is 230982163. The reversal of 230982133 is 331289032.

230982133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2k-230982133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230982095 and 230982104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230982113) 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, 764691 + ... + 764992.

It is an arithmetic number, because the mean of its divisors is an integer number (58127992).

Almost surely, 2230982133 is an apocalyptic number.

It is an amenable number.

230982133 is a deficient number, since it is larger than the sum of its proper divisors (1529835).

230982133 is a wasteful number, since it uses less digits than its factorization.

230982133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529834.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 230982133 is about 15198.0963610579. The cubic root of 230982133 is about 613.5634241927.

The spelling of 230982133 in words is "two hundred thirty million, nine hundred eighty-two thousand, one hundred thirty-three".

Divisors: 1 151 1529683 230982133