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20211033020 = 22519199267271
BaseRepresentation
bin10010110100101010…
…111110001110111100
31221011112121212010112
4102310222332032330
5312343011024040
613141304325152
71313563642343
oct226452761674
957145555115
1020211033020
118631668282
123b007737b8
131ba1325a49
14d9a33ab5a
157d4554365
hex4b4abe3bc

20211033020 has 48 divisors (see below), whose sum is σ = 44901696000. Its totient is φ = 7620402240.

The previous prime is 20211032993. The next prime is 20211033047. The reversal of 20211033020 is 2033011202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20211032993) and next prime (20211033047).

It is a junction number, because it is equal to n+sod(n) for n = 20211032986 and 20211033004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58016 + ... + 209255.

It is an arithmetic number, because the mean of its divisors is an integer number (935452000).

Almost surely, 220211033020 is an apocalyptic number.

20211033020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211033020 is an abundant number, since it is smaller than the sum of its proper divisors (24690662980).

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

20211033020 is a wasteful number, since it uses less digits than its factorization.

20211033020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267498 (or 267496 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20211033020 its reverse (2033011202), we get a palindrome (22244044222).

The spelling of 20211033020 in words is "twenty billion, two hundred eleven million, thirty-three thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 199 380 398 796 995 1990 3781 3980 7562 15124 18905 37810 75620 267271 534542 1069084 1336355 2672710 5078149 5345420 10156298 20312596 25390745 50781490 53186929 101562980 106373858 212747716 265934645 531869290 1010551651 1063738580 2021103302 4042206604 5052758255 10105516510 20211033020