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20100021240230 = 253076547238189
BaseRepresentation
bin1001001000111111001101…
…01000000100000110100110
32122011112200001001222000122
410210133212220010012212
510113304320414141410
6110425453340241542
74143115156363151
oct444374650040646
978145601058018
1020100021240230
11644a409a90248
1223076285402b2
13b2a56831c259
144d6bbc04ac98
1524ccaadb8e55
hex1247e6a041a6

20100021240230 has 16 divisors (see below), whose sum is σ = 36297888525360. Its totient is φ = 8013819542112.

The previous prime is 20100021240227. The next prime is 20100021240253. The reversal of 20100021240230 is 3204212000102.

It is a junction number, because it is equal to n+sod(n) for n = 20100021240199 and 20100021240208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3273616025 + ... + 3273622164.

It is an arithmetic number, because the mean of its divisors is an integer number (2268618032835).

Almost surely, 220100021240230 is an apocalyptic number.

20100021240230 is a deficient number, since it is larger than the sum of its proper divisors (16197867285130).

20100021240230 is a wasteful number, since it uses less digits than its factorization.

20100021240230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6547238503.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20100021240230 its reverse (3204212000102), we get a palindrome (23304233240332).

The spelling of 20100021240230 in words is "twenty trillion, one hundred billion, twenty-one million, two hundred forty thousand, two hundred thirty".

Divisors: 1 2 5 10 307 614 1535 3070 6547238189 13094476378 32736190945 65472381890 2010002124023 4020004248046 10050010620115 20100021240230