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2021498380 = 225119188629
BaseRepresentation
bin111100001111101…
…1001111000001100
312012212210202110101
41320133121320030
513120000422010
6532331420444
7101044311166
oct17037317014
95185722411
102021498380
119480a0720
12484bb4724
13262a637b5
14152693936
15bc70c73a
hex787d9e0c

2021498380 has 24 divisors (see below), whose sum is σ = 4631069520. Its totient is φ = 735090240.

The previous prime is 2021498363. The next prime is 2021498411. The reversal of 2021498380 is 838941202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4594095 + ... + 4594534.

It is an arithmetic number, because the mean of its divisors is an integer number (192961230).

Almost surely, 22021498380 is an apocalyptic number.

2021498380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021498380 is an abundant number, since it is smaller than the sum of its proper divisors (2609571140).

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

2021498380 is a wasteful number, since it uses less digits than its factorization.

2021498380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9188649 (or 9188647 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 2021498380 is about 44961.0762771533. The cubic root of 2021498380 is about 1264.4193474216.

The spelling of 2021498380 in words is "two billion, twenty-one million, four hundred ninety-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 9188629 18377258 36754516 45943145 91886290 101074919 183772580 202149838 404299676 505374595 1010749190 2021498380