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20110465 = 513130703
BaseRepresentation
bin100110010110…
…1110010000001
31101211201101001
41030231302001
520122013330
61555012001
7332636044
oct114556201
941751331
1020110465
1110396321
12689a001
1342217ab
142956c5b
151b739ca
hex132dc81

20110465 has 8 divisors (see below), whose sum is σ = 24317568. Its totient is φ = 15965040.

The previous prime is 20110429. The next prime is 20110481. The reversal of 20110465 is 56401102.

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

It is not a de Polignac number, because 20110465 - 29 = 20109953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14697 + ... + 16006.

It is an arithmetic number, because the mean of its divisors is an integer number (3039696).

Almost surely, 220110465 is an apocalyptic number.

It is an amenable number.

20110465 is a deficient number, since it is larger than the sum of its proper divisors (4207103).

20110465 is a wasteful number, since it uses less digits than its factorization.

20110465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30839.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 20110465 is about 4484.4693108550. The cubic root of 20110465 is about 271.9405913000.

Adding to 20110465 its reverse (56401102), we get a palindrome (76511567).

The spelling of 20110465 in words is "twenty million, one hundred ten thousand, four hundred sixty-five".

Divisors: 1 5 131 655 30703 153515 4022093 20110465