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230163155 = 546032631
BaseRepresentation
bin11011011100000…
…00001011010011
3121001002111111022
431232000023103
5432410210110
634501110055
75463232415
oct1556001323
9531074438
10230163155
11108a14a92
12650b832b
13388b8621
14227d49b5
1515316755
hexdb802d3

230163155 has 4 divisors (see below), whose sum is σ = 276195792. Its totient is φ = 184130520.

The previous prime is 230163137. The next prime is 230163161. The reversal of 230163155 is 551361032.

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

It is not a de Polignac number, because 230163155 - 28 = 230162899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23016311 + ... + 23016320.

It is an arithmetic number, because the mean of its divisors is an integer number (69048948).

Almost surely, 2230163155 is an apocalyptic number.

230163155 is a deficient number, since it is larger than the sum of its proper divisors (46032637).

230163155 is an equidigital number, since it uses as much as digits as its factorization.

230163155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46032636.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 230163155 is about 15171.1289955626. The cubic root of 230163155 is about 612.8374084331.

It can be divided in two parts, 2301 and 63155, that added together give a palindrome (65456).

The spelling of 230163155 in words is "two hundred thirty million, one hundred sixty-three thousand, one hundred fifty-five".

Divisors: 1 5 46032631 230163155