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2021102341 = 17118888373
BaseRepresentation
bin111100001110111…
…1001001100000101
312012212001122012021
41320131321030011
513114400233331
6532315123141
7101041041436
oct17035711405
95185048167
102021102341
11947950115
12484a434b1
1326295545b
141525cd48d
15bc680211
hex78779305

2021102341 has 4 divisors (see below), whose sum is σ = 2139990732. Its totient is φ = 1902213952.

The previous prime is 2021102327. The next prime is 2021102353. The reversal of 2021102341 is 1432011202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1432011202 = 2716005601.

It can be written as a sum of positive squares in 2 ways, for example, as 1658199841 + 362902500 = 40721^2 + 19050^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021102341 - 213 = 2021094149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021102141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59444170 + ... + 59444203.

It is an arithmetic number, because the mean of its divisors is an integer number (534997683).

Almost surely, 22021102341 is an apocalyptic number.

It is an amenable number.

2021102341 is a deficient number, since it is larger than the sum of its proper divisors (118888391).

2021102341 is a wasteful number, since it uses less digits than its factorization.

2021102341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118888390.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2021102341 is about 44956.6718185410. The cubic root of 2021102341 is about 1264.3367697185.

Adding to 2021102341 its reverse (1432011202), we get a palindrome (3453113543).

The spelling of 2021102341 in words is "two billion, twenty-one million, one hundred two thousand, three hundred forty-one".

Divisors: 1 17 118888373 2021102341