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27040143 = 313693337
BaseRepresentation
bin110011100100…
…1100110001111
31212212210002210
41213021212033
523410241033
62403321503
7445560144
oct147114617
955783083
1027040143
1114299729
129080293
1357a99b0
14383c3cb
152591d63
hex19c998f

27040143 has 8 divisors (see below), whose sum is σ = 38826928. Its totient is φ = 16640064.

The previous prime is 27040129. The next prime is 27040147. The reversal of 27040143 is 34104072.

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

It is not a de Polignac number, because 27040143 - 213 = 27031951 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 (27040147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346630 + ... + 346707.

It is an arithmetic number, because the mean of its divisors is an integer number (4853366).

Almost surely, 227040143 is an apocalyptic number.

27040143 is a deficient number, since it is larger than the sum of its proper divisors (11786785).

27040143 is a wasteful number, since it uses less digits than its factorization.

27040143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693353.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 27040143 is about 5200.0137499818. The cubic root of 27040143 is about 300.1486041550.

The spelling of 27040143 in words is "twenty-seven million, forty thousand, one hundred forty-three".

Divisors: 1 3 13 39 693337 2080011 9013381 27040143