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42401461 = 157270073
BaseRepresentation
bin1010000110111…
…1111010110101
32221210012212111
42201233322311
541323321321
64112451021
71023256264
oct241577265
987705774
1042401461
1121a30933
1212249a71
138a2792b
1458ba5db
153ac85e1
hex286feb5

42401461 has 4 divisors (see below), whose sum is σ = 42671692. Its totient is φ = 42131232.

The previous prime is 42401449. The next prime is 42401479. The reversal of 42401461 is 16410424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14205361 + 28196100 = 3769^2 + 5310^2 .

It is a cyclic number.

It is not a de Polignac number, because 42401461 - 29 = 42400949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42401561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134880 + ... + 135193.

It is an arithmetic number, because the mean of its divisors is an integer number (10667923).

Almost surely, 242401461 is an apocalyptic number.

It is an amenable number.

42401461 is a deficient number, since it is larger than the sum of its proper divisors (270231).

42401461 is a wasteful number, since it uses less digits than its factorization.

42401461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270230.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 42401461 is about 6511.6404231192. The cubic root of 42401461 is about 348.7066853534.

Adding to 42401461 its reverse (16410424), we get a palindrome (58811885).

The spelling of 42401461 in words is "forty-two million, four hundred one thousand, four hundred sixty-one".

Divisors: 1 157 270073 42401461