Search a number
-
+
2020221221010 = 2351812341158927
BaseRepresentation
bin11101011001011110100…
…100010111100010010010
321011010112200122022101120
4131121132210113202102
5231044403113033020
64144024331543110
7265645652022126
oct35313644274222
97133480568346
102020221221010
11709853237493
12287647bbaa96
13118676a163c5
146daca2bd586
153783d395740
hex1d65e917892

2020221221010 has 64 divisors (see below), whose sum is σ = 4877431663104. Its totient is φ = 535517049600.

The previous prime is 2020221220993. The next prime is 2020221221099. The reversal of 2020221221010 is 101221220202.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12632167 + ... + 12791093.

It is an arithmetic number, because the mean of its divisors is an integer number (76209869736).

Almost surely, 22020221221010 is an apocalyptic number.

2020221221010 is an abundant number, since it is smaller than the sum of its proper divisors (2857210442094).

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

2020221221010 is a wasteful number, since it uses less digits than its factorization.

2020221221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161459.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2020221221010 its reverse (101221220202), we get a palindrome (2121442441212).

The spelling of 2020221221010 in words is "two trillion, twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 181 362 543 905 1086 1810 2341 2715 4682 5430 7023 11705 14046 23410 35115 70230 158927 317854 423721 476781 794635 847442 953562 1271163 1589270 2118605 2383905 2542326 4237210 4767810 6355815 12711630 28765787 57531574 86297361 143828935 172594722 287657870 372048107 431486805 744096214 862973610 1116144321 1860240535 2232288642 3720481070 5580721605 11161443210 67340707367 134681414734 202022122101 336703536835 404044244202 673407073670 1010110610505 2020221221010