Search a number
-
+
221060230 = 25122917987
BaseRepresentation
bin11010010110100…
…01110010000110
3120101222000121221
431023101302012
5423042411410
633534030554
75322660316
oct1513216206
9511860557
10221060230
11103867906
126204845a
1336a4c191
1421505446
15146194da
hexd2d1c86

221060230 has 16 divisors (see below), whose sum is σ = 398254320. Its totient is φ = 88347232.

The previous prime is 221060183. The next prime is 221060263. The reversal of 221060230 is 32060122.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 3297 + ... + 21283.

It is an arithmetic number, because the mean of its divisors is an integer number (24890895).

Almost surely, 2221060230 is an apocalyptic number.

221060230 is a deficient number, since it is larger than the sum of its proper divisors (177194090).

221060230 is a wasteful number, since it uses less digits than its factorization.

221060230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19223.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 221060230 is about 14868.0943634347. The cubic root of 221060230 is about 604.6492787727.

The spelling of 221060230 in words is "two hundred twenty-one million, sixty thousand, two hundred thirty".

Divisors: 1 2 5 10 1229 2458 6145 12290 17987 35974 89935 179870 22106023 44212046 110530115 221060230