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20182841 = 77936497
BaseRepresentation
bin100110011111…
…1011100111001
31101222101122122
41030333130321
520131322331
62000331025
7333360050
oct114773471
941871578
1020182841
1110435738
126913a75
134248713
142975397
151b8a17b
hex133f739

20182841 has 8 divisors (see below), whose sum is σ = 23358720. Its totient is φ = 17080128.

The previous prime is 20182837. The next prime is 20182843. The reversal of 20182841 is 14828102.

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

It is a cyclic number.

It is not a de Polignac number, because 20182841 - 22 = 20182837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20182841.

It is not an unprimeable number, because it can be changed into a prime (20182843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17696 + ... + 18801.

It is an arithmetic number, because the mean of its divisors is an integer number (2919840).

Almost surely, 220182841 is an apocalyptic number.

It is an amenable number.

20182841 is a deficient number, since it is larger than the sum of its proper divisors (3175879).

20182841 is an equidigital number, since it uses as much as digits as its factorization.

20182841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36583.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 20182841 is about 4492.5316915966. The cubic root of 20182841 is about 272.2664317358.

The spelling of 20182841 in words is "twenty million, one hundred eighty-two thousand, eight hundred forty-one".

Divisors: 1 7 79 553 36497 255479 2883263 20182841