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20102411 = 710726839
BaseRepresentation
bin100110010101…
…1110100001011
31101211022022202
41030223310023
520121234121
61554510415
7332603420
oct114536413
941738282
1020102411
111039026a
12689540b
13421ac24
142953d47
151b7140b
hex132bd0b

20102411 has 8 divisors (see below), whose sum is σ = 23189760. Its totient is φ = 17068968.

The previous prime is 20102389. The next prime is 20102413. The reversal of 20102411 is 11420102.

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

It is not a de Polignac number, because 20102411 - 210 = 20101387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20102392 and 20102401.

It is not an unprimeable number, because it can be changed into a prime (20102413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12671 + ... + 14168.

It is an arithmetic number, because the mean of its divisors is an integer number (2898720).

Almost surely, 220102411 is an apocalyptic number.

20102411 is a deficient number, since it is larger than the sum of its proper divisors (3087349).

20102411 is a wasteful number, since it uses less digits than its factorization.

20102411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26953.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 20102411 is about 4483.5712328455. The cubic root of 20102411 is about 271.9042834711.

Adding to 20102411 its reverse (11420102), we get a palindrome (31522513).

The spelling of 20102411 in words is "twenty million, one hundred two thousand, four hundred eleven".

Divisors: 1 7 107 749 26839 187873 2871773 20102411