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20255147527 = 295091372207
BaseRepresentation
bin10010110111010011…
…010000011000000111
31221021121122002212011
4102313103100120013
5312440304210102
613145522035051
71314640625146
oct226723203007
957247562764
1020255147527
11865455914a
123b134a8a87
131baa5002c4
14da214175d
157d836a2d7
hex4b74d0607

20255147527 has 8 divisors (see below), whose sum is σ = 20994782400. Its totient is φ = 19518258144.

The previous prime is 20255147513. The next prime is 20255147533. The reversal of 20255147527 is 72574155202.

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 20255147527 - 223 = 20246758919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20255147527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20255147027) 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, 671343 + ... + 700864.

It is an arithmetic number, because the mean of its divisors is an integer number (2624347800).

Almost surely, 220255147527 is an apocalyptic number.

20255147527 is a deficient number, since it is larger than the sum of its proper divisors (739634873).

20255147527 is a wasteful number, since it uses less digits than its factorization.

20255147527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372745.

The product of its (nonzero) digits is 196000, while the sum is 40.

The spelling of 20255147527 in words is "twenty billion, two hundred fifty-five million, one hundred forty-seven thousand, five hundred twenty-seven".

Divisors: 1 29 509 14761 1372207 39794003 698453363 20255147527