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27250451143 = 54787497389
BaseRepresentation
bin11001011000010000…
…001110001011000111
32121100010112100102021
4121120100032023013
5421302103414033
620304011424011
71653202004266
oct313020161307
977303470367
1027250451143
1110614195303
125346155007
132753850706
1414671d85dd
15a97557b2d
hex65840e2c7

27250451143 has 4 divisors (see below), whose sum is σ = 27251003320. Its totient is φ = 27249898968.

The previous prime is 27250451113. The next prime is 27250451177. The reversal of 27250451143 is 34115405272.

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 27250451143 - 29 = 27250450631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27250451099 and 27250451108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27250451113) 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, 193908 + ... + 303481.

It is an arithmetic number, because the mean of its divisors is an integer number (6812750830).

Almost surely, 227250451143 is an apocalyptic number.

27250451143 is a deficient number, since it is larger than the sum of its proper divisors (552177).

27250451143 is an equidigital number, since it uses as much as digits as its factorization.

27250451143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552176.

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 27250451143 in words is "twenty-seven billion, two hundred fifty million, four hundred fifty-one thousand, one hundred forty-three".

Divisors: 1 54787 497389 27250451143