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14640625471 = 173127781073
BaseRepresentation
bin11011010001010011…
…00011011100111111
31101210022220211111211
431220221203130333
5214441000003341
610420435225251
71025544156163
oct155051433477
941708824454
1014640625471
11623328467a
122a07148227
1314c425cbc4
149cc5d6ca3
155aa4c8181
hex368a6373f

14640625471 has 8 divisors (see below), whose sum is σ = 16001898624. Its totient is φ = 13334914560.

The previous prime is 14640625457. The next prime is 14640625487. The reversal of 14640625471 is 17452604641.

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

It is a cyclic number.

It is not a de Polignac number, because 14640625471 - 29 = 14640624959 is a prime.

It is a super-3 number, since 3×146406254713 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14640625171) 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, 13890010 + ... + 13891063.

It is an arithmetic number, because the mean of its divisors is an integer number (2000237328).

Almost surely, 214640625471 is an apocalyptic number.

14640625471 is a deficient number, since it is larger than the sum of its proper divisors (1361273153).

14640625471 is a wasteful number, since it uses less digits than its factorization.

14640625471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27781121.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 14640625471 in words is "fourteen billion, six hundred forty million, six hundred twenty-five thousand, four hundred seventy-one".

Divisors: 1 17 31 527 27781073 472278241 861213263 14640625471