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2021290572 = 223726751307
BaseRepresentation
bin111100001111010…
…0111001001001100
312012212102012101210
41320132213021030
513114422244242
6532323134420
7101042454300
oct17036471114
95185365353
102021290572
11947a69584
12484b14410
132629c0032
1415263bd00
15bc6bad9c
hex787a724c

2021290572 has 72 divisors (see below), whose sum is σ = 5568354624. Its totient is φ = 568880928.

The previous prime is 2021290567. The next prime is 2021290573. The reversal of 2021290572 is 2750921202.

2021290572 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2021290573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13743 + ... + 65049.

Almost surely, 22021290572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021290572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2784177312).

2021290572 is an abundant number, since it is smaller than the sum of its proper divisors (3547064052).

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

2021290572 is a wasteful number, since it uses less digits than its factorization.

2021290572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51395 (or 51386 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 2021290572 is about 44958.7652410517. The cubic root of 2021290572 is about 1264.3760189246.

The spelling of 2021290572 in words is "two billion, twenty-one million, two hundred ninety thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 67 84 98 134 147 196 201 268 294 402 469 588 804 938 1407 1876 2814 3283 5628 6566 9849 13132 19698 39396 51307 102614 153921 205228 307842 359149 615684 718298 1077447 1436596 2154894 2514043 3437569 4309788 5028086 6875138 7542129 10056172 10312707 13750276 15084258 20625414 24062983 30168516 41250828 48125966 72188949 96251932 144377898 168440881 288755796 336881762 505322643 673763524 1010645286 2021290572