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163230356 = 2223277141
BaseRepresentation
bin10011011101010…
…11001010010100
3102101010221221202
421232223022110
5313241332411
624110332032
74021302152
oct1156531224
9371127852
10163230356
1184159423
12467ba018
1327a81c13
14179703d2
15e4e483b
hex9bab294

163230356 has 18 divisors (see below), whose sum is σ = 298616682. Its totient is φ = 78065680.

The previous prime is 163230343. The next prime is 163230391. The reversal of 163230356 is 653032361.

It is a happy number.

163230356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 132250000 + 30980356 = 11500^2 + 5566^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36455 + ... + 40686.

Almost surely, 2163230356 is an apocalyptic number.

It is an amenable number.

163230356 is a deficient number, since it is larger than the sum of its proper divisors (135386326).

163230356 is a wasteful number, since it uses less digits than its factorization.

163230356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77191 (or 77166 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 163230356 is about 12776.1635869302. The cubic root of 163230356 is about 546.5127637020.

The spelling of 163230356 in words is "one hundred sixty-three million, two hundred thirty thousand, three hundred fifty-six".

Divisors: 1 2 4 23 46 92 529 1058 2116 77141 154282 308564 1774243 3548486 7096972 40807589 81615178 163230356