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220210230 = 23553138497
BaseRepresentation
bin11010010000000…
…10010000110110
3120100100211122110
431020002100312
5422333211410
633503511450
75312520222
oct1510022066
9510324573
10220210230
11103337229
12618b8586
1336812316
1421363782
15144ec720
hexd202436

220210230 has 32 divisors (see below), whose sum is σ = 538480224. Its totient is φ = 57614336.

The previous prime is 220210217. The next prime is 220210261. The reversal of 220210230 is 32012022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67659 + ... + 70838.

It is an arithmetic number, because the mean of its divisors is an integer number (16827507).

Almost surely, 2220210230 is an apocalyptic number.

220210230 is an abundant number, since it is smaller than the sum of its proper divisors (318269994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220210230 is a wasteful number, since it uses less digits than its factorization.

220210230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138560.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 220210230 is about 14839.4821338212. The cubic root of 220210230 is about 603.8733031772.

Adding to 220210230 its reverse (32012022), we get a palindrome (252222252).

The spelling of 220210230 in words is "two hundred twenty million, two hundred ten thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 53 106 159 265 318 530 795 1590 138497 276994 415491 692485 830982 1384970 2077455 4154910 7340341 14680682 22021023 36701705 44042046 73403410 110105115 220210230