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10111232020 = 225505561601
BaseRepresentation
bin10010110101010110…
…10010100000010100
3222002200001210202211
421122223102200110
5131201433411040
64351154443204
7505365024361
oct113253224024
928080053684
1010111232020
1143195882aa
121b62293504
13c51a64536
146bcc39468
153e2a308ea
hex25aad2814

10111232020 has 12 divisors (see below), whose sum is σ = 21233587284. Its totient is φ = 4044492800.

The previous prime is 10111232011. The next prime is 10111232081. The reversal of 10111232020 is 2023211101.

It can be written as a sum of positive squares in 2 ways, for example, as 3751807504 + 6359424516 = 61252^2 + 79746^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252780781 + ... + 252780820.

It is an arithmetic number, because the mean of its divisors is an integer number (1769465607).

Almost surely, 210111232020 is an apocalyptic number.

10111232020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111232020 is an abundant number, since it is smaller than the sum of its proper divisors (11122355264).

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

10111232020 is a wasteful number, since it uses less digits than its factorization.

10111232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505561610 (or 505561608 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10111232020 its reverse (2023211101), we get a palindrome (12134443121).

The spelling of 10111232020 in words is "ten billion, one hundred eleven million, two hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 505561601 1011123202 2022246404 2527808005 5055616010 10111232020