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230477 = 1317729
BaseRepresentation
bin111000010001001101
3102201011012
4320101031
524333402
64535005
71646642
oct702115
9381135
10230477
11148185
12b1465
1380ba0
145ddc9
1548452
hex3844d

230477 has 4 divisors (see below), whose sum is σ = 248220. Its totient is φ = 212736.

The previous prime is 230471. The next prime is 230479. The reversal of 230477 is 774032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90601 + 139876 = 301^2 + 374^2 .

It is a cyclic number.

It is not a de Polignac number, because 230477 - 28 = 230221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230471) 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, 8852 + ... + 8877.

It is an arithmetic number, because the mean of its divisors is an integer number (62055).

2230477 is an apocalyptic number.

It is an amenable number.

230477 is a deficient number, since it is larger than the sum of its proper divisors (17743).

230477 is a wasteful number, since it uses less digits than its factorization.

230477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17742.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 230477 is about 480.0802016330. The cubic root of 230477 is about 61.3115832089.

It can be divided in two parts, 230 and 477, that added together give a palindrome (707).

The spelling of 230477 in words is "two hundred thirty thousand, four hundred seventy-seven".

Divisors: 1 13 17729 230477