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2021018485 = 5676032891
BaseRepresentation
bin111100001110110…
…0100101101110101
312012211220101011111
41320131210231311
513114340042420
6532313235021
7101040242113
oct17035445565
95184811144
102021018485
119478a3112
12484a02a71
13262926235
141525aaab3
15bc66545a
hex78764b75

2021018485 has 8 divisors (see below), whose sum is σ = 2461419936. Its totient is φ = 1592682960.

The previous prime is 2021018473. The next prime is 2021018513. The reversal of 2021018485 is 5848101202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2021018485 - 219 = 2020494197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3016111 + ... + 3016780.

It is an arithmetic number, because the mean of its divisors is an integer number (307677492).

Almost surely, 22021018485 is an apocalyptic number.

It is an amenable number.

2021018485 is a deficient number, since it is larger than the sum of its proper divisors (440401451).

2021018485 is an equidigital number, since it uses as much as digits as its factorization.

2021018485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032963.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 2021018485 is about 44955.7391775511. The cubic root of 2021018485 is about 1264.3192836024.

Adding to 2021018485 its reverse (5848101202), we get a palindrome (7869119687).

The spelling of 2021018485 in words is "two billion, twenty-one million, eighteen thousand, four hundred eighty-five".

Divisors: 1 5 67 335 6032891 30164455 404203697 2021018485