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20353524053 = 291375122961
BaseRepresentation
bin10010111101001010…
…100010000101010101
31221112110202011002012
4102331022202011111
5313141000232203
613203354354005
71320244046162
oct227512420525
957473664065
1020353524053
1186a5040965
123b4042b905
131bc49c5b75
14db122d069
157e1cedbd8
hex4bd2a2155

20353524053 has 8 divisors (see below), whose sum is σ = 21209062680. Its totient is φ = 19508231680.

The previous prime is 20353524049. The next prime is 20353524119. The reversal of 20353524053 is 35042535302.

It can be written as a sum of positive squares in 4 ways, for example, as 167365969 + 20186158084 = 12937^2 + 142078^2 .

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 20353524053 - 22 = 20353524049 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 (20353524253) 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, 2557508 + ... + 2565453.

It is an arithmetic number, because the mean of its divisors is an integer number (2651132835).

Almost surely, 220353524053 is an apocalyptic number.

It is an amenable number.

20353524053 is a deficient number, since it is larger than the sum of its proper divisors (855538627).

20353524053 is a wasteful number, since it uses less digits than its factorization.

20353524053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123127.

The product of its (nonzero) digits is 54000, while the sum is 32.

The spelling of 20353524053 in words is "twenty billion, three hundred fifty-three million, five hundred twenty-four thousand, fifty-three".

Divisors: 1 29 137 3973 5122961 148565869 701845657 20353524053