Search a number
-
+
1230220100202 = 231394193520487
BaseRepresentation
bin10001111001101110110…
…101010000001001101010
311100121102011011021001220
4101321232311100021222
5130123442321201302
62341053314122510
7154611000213312
oct21715665201152
94317364137056
101230220100202
114348081a1715
1217a512280436
138c017453cc2
1443785ca8442
1522002cde4bc
hex11e6ed5026a

1230220100202 has 32 divisors (see below), whose sum is σ = 2484056332800. Its totient is φ = 406151428848.

The previous prime is 1230220100183. The next prime is 1230220100209. The reversal of 1230220100202 is 2020010220321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1230220100209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1410798 + ... + 2109689.

It is an arithmetic number, because the mean of its divisors is an integer number (77626760400).

Almost surely, 21230220100202 is an apocalyptic number.

1230220100202 is an abundant number, since it is smaller than the sum of its proper divisors (1253836232598).

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

1230220100202 is a wasteful number, since it uses less digits than its factorization.

1230220100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521050.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 1230220100202 its reverse (2020010220321), we get a palindrome (3250230320523).

The spelling of 1230220100202 in words is "one trillion, two hundred thirty billion, two hundred twenty million, one hundred thousand, two hundred two".

Divisors: 1 2 3 6 139 278 417 419 834 838 1257 2514 58241 116482 174723 349446 3520487 7040974 10561461 21122922 489347693 978695386 1468043079 1475084053 2936086158 2950168106 4425252159 8850504318 205036683367 410073366734 615110050101 1230220100202