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20052524551 = 193728524217
BaseRepresentation
bin10010101011001110…
…010011111000000111
31220202111100210101111
4102223032103320013
5312031421241201
613113443105451
71306630434463
oct225316237007
956674323344
1020052524551
118560144544
123a77672287
131b77538157
14d832794a3
157c5693b51
hex4ab393e07

20052524551 has 8 divisors (see below), whose sum is σ = 21678405680. Its totient is φ = 18483691968.

The previous prime is 20052524509. The next prime is 20052524567. The reversal of 20052524551 is 15542525002.

It is a happy number.

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 20052524551 - 27 = 20052524423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52524551) 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, 14261406 + ... + 14262811.

It is an arithmetic number, because the mean of its divisors is an integer number (2709800710).

Almost surely, 220052524551 is an apocalyptic number.

20052524551 is a deficient number, since it is larger than the sum of its proper divisors (1625881129).

20052524551 is a wasteful number, since it uses less digits than its factorization.

20052524551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28524273.

The product of its (nonzero) digits is 20000, while the sum is 31.

The spelling of 20052524551 in words is "twenty billion, fifty-two million, five hundred twenty-four thousand, five hundred fifty-one".

Divisors: 1 19 37 703 28524217 541960123 1055396029 20052524551