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20203021211010 = 23511385315889249
BaseRepresentation
bin1001001011111111000011…
…11001110001010110000010
32122112101112021200121112020
410211333201321301112002
510122001241412223020
6110545050111142310
74153422461603151
oct445774171612602
978471467617466
1020203021211010
11648a064866840
122323592b14996
13b371a1502b21
144dbb8d6a7598
152507d868dc40
hex125fe1e71582

20203021211010 has 64 divisors (see below), whose sum is σ = 52908914448000. Its totient is φ = 4896430663680.

The previous prime is 20203021210993. The next prime is 20203021211027. The reversal of 20203021211010 is 1011212030202.

It is an interprime number because it is at equal distance from previous prime (20203021210993) and next prime (20203021211027).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6673135 + ... + 9216114.

It is an arithmetic number, because the mean of its divisors is an integer number (826701788250).

Almost surely, 220203021211010 is an apocalyptic number.

20203021211010 is an abundant number, since it is smaller than the sum of its proper divisors (32705893236990).

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

20203021211010 is a wasteful number, since it uses less digits than its factorization.

20203021211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15893123.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20203021211010 its reverse (1011212030202), we get a palindrome (21214233241212).

The spelling of 20203021211010 in words is "twenty trillion, two hundred three billion, twenty-one million, two hundred eleven thousand, ten".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 3853 7706 11559 19265 23118 38530 42383 57795 84766 115590 127149 211915 254298 423830 635745 1271490 15889249 31778498 47667747 79446245 95335494 158892490 174781739 238338735 349563478 476677470 524345217 873908695 1048690434 1747817390 2621726085 5243452170 61221276397 122442552794 183663829191 306106381985 367327658382 612212763970 673434040367 918319145955 1346868080734 1836638291910 2020302121101 3367170201835 4040604242202 6734340403670 10101510605505 20203021211010