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26531006141 = 173153358417
BaseRepresentation
bin11000101101010111…
…110000011010111101
32112110222202202102002
4120231113300122331
5413313414144031
620104351312045
71626314555063
oct305527603275
975428682362
1026531006141
1110285074662
12518521b625
13266a793703
1413d983c033
15a542e3ccb
hex62d5f06bd

26531006141 has 4 divisors (see below), whose sum is σ = 26684364732. Its totient is φ = 26377647552.

The previous prime is 26531006111. The next prime is 26531006143. The reversal of 26531006141 is 14160013562.

It is a happy number.

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 24509154916 + 2021851225 = 156554^2 + 44965^2 .

It is a cyclic number.

It is not a de Polignac number, because 26531006141 - 222 = 26526811837 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 (26531006143) 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, 76679036 + ... + 76679381.

It is an arithmetic number, because the mean of its divisors is an integer number (6671091183).

Almost surely, 226531006141 is an apocalyptic number.

It is an amenable number.

26531006141 is a deficient number, since it is larger than the sum of its proper divisors (153358591).

26531006141 is a wasteful number, since it uses less digits than its factorization.

26531006141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153358590.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 26531006141 in words is "twenty-six billion, five hundred thirty-one million, six thousand, one hundred forty-one".

Divisors: 1 173 153358417 26531006141