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20536737083 = 97211718939
BaseRepresentation
bin10011001000000101…
…011011110100111011
31222000020111100002222
4103020011123310323
5314024401041313
613233501314255
71324630246022
oct231005336473
958006440088
1020536737083
1187894a8595
123b9186598b
131c23953345
14dcb6c18b9
15802e3e208
hex4c815bd3b

20536737083 has 4 divisors (see below), whose sum is σ = 20748456120. Its totient is φ = 20325018048.

The previous prime is 20536737073. The next prime is 20536737097. The reversal of 20536737083 is 38073763502.

20536737083 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38073763502 = 219036881751.

It is a cyclic number.

It is not a de Polignac number, because 20536737083 - 28 = 20536736827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20536737073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105859373 + ... + 105859566.

It is an arithmetic number, because the mean of its divisors is an integer number (5187114030).

Almost surely, 220536737083 is an apocalyptic number.

20536737083 is a deficient number, since it is larger than the sum of its proper divisors (211719037).

20536737083 is an equidigital number, since it uses as much as digits as its factorization.

20536737083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211719036.

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 20536737083 in words is "twenty billion, five hundred thirty-six million, seven hundred thirty-seven thousand, eighty-three".

Divisors: 1 97 211718939 20536737083