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163230355 = 532646071
BaseRepresentation
bin10011011101010…
…11001010010011
3102101010221221201
421232223022103
5313241332410
624110332031
74021302151
oct1156531223
9371127851
10163230355
1184159422
12467ba017
1327a81c12
14179703d1
15e4e483a
hex9bab293

163230355 has 4 divisors (see below), whose sum is σ = 195876432. Its totient is φ = 130584280.

The previous prime is 163230343. The next prime is 163230391. The reversal of 163230355 is 553032361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 553032361 = 779004623.

It is not a de Polignac number, because 163230355 - 27 = 163230227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16323031 + ... + 16323040.

It is an arithmetic number, because the mean of its divisors is an integer number (48969108).

Almost surely, 2163230355 is an apocalyptic number.

163230355 is a deficient number, since it is larger than the sum of its proper divisors (32646077).

163230355 is an equidigital number, since it uses as much as digits as its factorization.

163230355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32646076.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 163230355 is about 12776.1635477948. The cubic root of 163230355 is about 546.5127625860.

The spelling of 163230355 in words is "one hundred sixty-three million, two hundred thirty thousand, three hundred fifty-five".

Divisors: 1 5 32646071 163230355