Search a number
-
+
2021089210 = 25761503941
BaseRepresentation
bin111100001110111…
…0101111110111010
312012212000222011221
41320131311332322
513114344323320
6532314542254
7101040655240
oct17035657672
95185028157
102021089210
11947941268
12484a3798a
1326294c49a
141525c8790
15bc67b3aa
hex78775fba

2021089210 has 64 divisors (see below), whose sum is σ = 4238728704. Its totient is φ = 679507200.

The previous prime is 2021089207. The next prime is 2021089211. The reversal of 2021089210 is 129801202.

It is not an unprimeable number, because it can be changed into a prime (2021089211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2147340 + ... + 2148280.

It is an arithmetic number, because the mean of its divisors is an integer number (66230136).

Almost surely, 22021089210 is an apocalyptic number.

2021089210 is an abundant number, since it is smaller than the sum of its proper divisors (2217639494).

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

2021089210 is a wasteful number, since it uses less digits than its factorization.

2021089210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 2021089210 is about 44956.5257776888. The cubic root of 2021089210 is about 1264.3340316018.

The spelling of 2021089210 in words is "two billion, twenty-one million, eighty-nine thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 35 61 70 122 305 427 503 610 854 941 1006 1882 2135 2515 3521 4270 4705 5030 6587 7042 9410 13174 17605 30683 32935 35210 57401 61366 65870 114802 153415 214781 287005 306830 401807 429562 473323 574010 803614 946646 1073905 2009035 2147810 2366615 3313261 4018070 4733230 6626522 16566305 28872703 33132610 57745406 144363515 202108921 288727030 404217842 1010544605 2021089210