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42452410405 = 520814080001
BaseRepresentation
bin100111100010010111…
…000110000000100101
311001120120200220010111
4213202113012000211
51143420304113110
631300302253021
73032003351236
oct474227060045
9131516626114
1042452410405
11170053082a9
128289287171
13400718b792
1420aa19108d
151186e61e8a
hex9e25c6025

42452410405 has 8 divisors (see below), whose sum is σ = 50967384984. Its totient is φ = 33945600000.

The previous prime is 42452410381. The next prime is 42452410417. The reversal of 42452410405 is 50401425424.

It can be written as a sum of positive squares in 4 ways, for example, as 4826497729 + 37625912676 = 69473^2 + 193974^2 .

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

It is not a de Polignac number, because 42452410405 - 29 = 42452409893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2029596 + ... + 2050405.

It is an arithmetic number, because the mean of its divisors is an integer number (6370923123).

Almost surely, 242452410405 is an apocalyptic number.

It is an amenable number.

42452410405 is a deficient number, since it is larger than the sum of its proper divisors (8514974579).

42452410405 is a wasteful number, since it uses less digits than its factorization.

42452410405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082087.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 42452410405 its reverse (50401425424), we get a palindrome (92853835829).

The spelling of 42452410405 in words is "forty-two billion, four hundred fifty-two million, four hundred ten thousand, four hundred five".

Divisors: 1 5 2081 10405 4080001 20400005 8490482081 42452410405