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42154343351 = 231832797537
BaseRepresentation
bin100111010000100110…
…000011101110110111
311000210210211111222222
4213100212003232313
51142313002441401
631210533512555
73021424002131
oct472046035667
9130723744888
1042154343351
111697203409a
1282054a275b
133c8a4b9743
14207c762051
15116abd5c1b
hex9d0983bb7

42154343351 has 4 divisors (see below), whose sum is σ = 43987140912. Its totient is φ = 40321545792.

The previous prime is 42154343327. The next prime is 42154343353. The reversal of 42154343351 is 15334345124.

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

It is a cyclic number.

It is not a de Polignac number, because 42154343351 - 214 = 42154326967 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 (42154343353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916398746 + ... + 916398791.

It is an arithmetic number, because the mean of its divisors is an integer number (10996785228).

Almost surely, 242154343351 is an apocalyptic number.

42154343351 is a deficient number, since it is larger than the sum of its proper divisors (1832797561).

42154343351 is a wasteful number, since it uses less digits than its factorization.

42154343351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832797560.

The product of its digits is 86400, while the sum is 35.

Adding to 42154343351 its reverse (15334345124), we get a palindrome (57488688475).

The spelling of 42154343351 in words is "forty-two billion, one hundred fifty-four million, three hundred forty-three thousand, three hundred fifty-one".

Divisors: 1 23 1832797537 42154343351