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230478207 = 376826069
BaseRepresentation
bin11011011110011…
…01000101111111
3121001200111122220
431233031011333
5433000300312
634511540423
75466014061
oct1557150577
9531614586
10230478207
1110910a763
126522a713
1338998b4b
1422877731
1515379c8c
hexdbcd17f

230478207 has 4 divisors (see below), whose sum is σ = 307304280. Its totient is φ = 153652136.

The previous prime is 230478187. The next prime is 230478223. The reversal of 230478207 is 702874032.

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

It is a cyclic number.

It is not a de Polignac number, because 230478207 - 210 = 230477183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230478257) 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, 38413032 + ... + 38413037.

It is an arithmetic number, because the mean of its divisors is an integer number (76826070).

Almost surely, 2230478207 is an apocalyptic number.

230478207 is a deficient number, since it is larger than the sum of its proper divisors (76826073).

230478207 is an equidigital number, since it uses as much as digits as its factorization.

230478207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76826072.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 230478207 is about 15181.5087194916. The cubic root of 230478207 is about 613.1169023756.

The spelling of 230478207 in words is "two hundred thirty million, four hundred seventy-eight thousand, two hundred seven".

Divisors: 1 3 76826069 230478207