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20114081 = 132953353
BaseRepresentation
bin100110010111…
…0101010100001
31101211220022222
41030232222201
520122122311
61555040425
7332652431
oct114565241
941756288
1020114081
1110399009
1268a0115
134223330
1429582c1
151b74adb
hex132eaa1

20114081 has 8 divisors (see below), whose sum is σ = 22408680. Its totient is φ = 17926272.

The previous prime is 20114063. The next prime is 20114093. The reversal of 20114081 is 18041102.

It can be written as a sum of positive squares in 4 ways, for example, as 3671056 + 16443025 = 1916^2 + 4055^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-20114081 is a prime.

It is a super-2 number, since 2×201140812 = 809152508949122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20114021) 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, 26300 + ... + 27053.

It is an arithmetic number, because the mean of its divisors is an integer number (2801085).

Almost surely, 220114081 is an apocalyptic number.

It is an amenable number.

20114081 is a deficient number, since it is larger than the sum of its proper divisors (2294599).

20114081 is a wasteful number, since it uses less digits than its factorization.

20114081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53395.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 20114081 is about 4484.8724619547. The cubic root of 20114081 is about 271.9568892531.

Adding to 20114081 its reverse (18041102), we get a palindrome (38155183).

The spelling of 20114081 in words is "twenty million, one hundred fourteen thousand, eighty-one".

Divisors: 1 13 29 377 53353 693589 1547237 20114081