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36520459997 = 75217208571
BaseRepresentation
bin100010000000110010…
…011111111011011101
310111021011200120221112
4202000302133323131
51044243214204442
624435520111405
72432003534210
oct420062377335
9114234616845
1036520459997
111454093614a
1270b2765565
1335a022a858
141aa6417777
15e3b2bc082
hex880c9fedd

36520459997 has 4 divisors (see below), whose sum is σ = 41737668576. Its totient is φ = 31303251420.

The previous prime is 36520459993. The next prime is 36520460033. The reversal of 36520459997 is 79995402563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 36520459997 - 22 = 36520459993 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 (36520459991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2608604279 + ... + 2608604292.

It is an arithmetic number, because the mean of its divisors is an integer number (10434417144).

Almost surely, 236520459997 is an apocalyptic number.

It is an amenable number.

36520459997 is a deficient number, since it is larger than the sum of its proper divisors (5217208579).

36520459997 is an equidigital number, since it uses as much as digits as its factorization.

36520459997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5217208578.

The product of its (nonzero) digits is 18370800, while the sum is 59.

The spelling of 36520459997 in words is "thirty-six billion, five hundred twenty million, four hundred fifty-nine thousand, nine hundred ninety-seven".

Divisors: 1 7 5217208571 36520459997