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52697001601 = 161743325807
BaseRepresentation
bin110001000100111111…
…000110111010000001
312001000112201001022001
4301010333012322001
51330410413022401
640113023344001
73543611060116
oct610477067201
9161015631261
1052697001601
11203920a12a2
12a268152001
134c7a74676a
14279c9c290d
151586536601
hexc44fc6e81

52697001601 has 4 divisors (see below), whose sum is σ = 52697489152. Its totient is φ = 52696514052.

The previous prime is 52697001583. The next prime is 52697001629. The reversal of 52697001601 is 10610079625.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 52697001601 - 213 = 52696993409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52697001641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1161 + ... + 324646.

It is an arithmetic number, because the mean of its divisors is an integer number (13174372288).

Almost surely, 252697001601 is an apocalyptic number.

It is an amenable number.

52697001601 is a deficient number, since it is larger than the sum of its proper divisors (487551).

52697001601 is a wasteful number, since it uses less digits than its factorization.

52697001601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487550.

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 52697001601 in words is "fifty-two billion, six hundred ninety-seven million, one thousand, six hundred one".

Divisors: 1 161743 325807 52697001601