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193241906593 = 1024071886999
BaseRepresentation
bin1011001111111000011…
…1010111110110100001
3200110210100201222011121
42303332013113312201
511131224412002333
6224435112412241
716650500050531
oct2637607276641
9613710658147
10193241906593
1174a5402263a
12315503a7081
13152b8183b38
1494d27354c1
15505eee132d
hex2cfe1d7da1

193241906593 has 4 divisors (see below), whose sum is σ = 193243896000. Its totient is φ = 193239917188.

The previous prime is 193241906591. The next prime is 193241906617. The reversal of 193241906593 is 395609142391.

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 an emirpimes, since its reverse is a distinct semiprime: 395609142391 = 1723271126023.

It is a cyclic number.

It is not a de Polignac number, because 193241906593 - 21 = 193241906591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 193241906593.

It is not an unprimeable number, because it can be changed into a prime (193241906591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841093 + ... + 1045906.

It is an arithmetic number, because the mean of its divisors is an integer number (48310974000).

Almost surely, 2193241906593 is an apocalyptic number.

It is an amenable number.

193241906593 is a deficient number, since it is larger than the sum of its proper divisors (1989407).

193241906593 is a wasteful number, since it uses less digits than its factorization.

193241906593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989406.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The spelling of 193241906593 in words is "one hundred ninety-three billion, two hundred forty-one million, nine hundred six thousand, five hundred ninety-three".

Divisors: 1 102407 1886999 193241906593