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187933349041 = 259437244087
BaseRepresentation
bin1010111100000110110…
…0110101010010110001
3122222002101202022012221
42233001230311102301
511034341414132131
6222200235521041
716402110052414
oct2570154652261
9588071668187
10187933349041
117277a526799
123050a5b9181
131495041c319
14914b6b3b7b
154d4de3a411
hex2bc1b354b1

187933349041 has 4 divisors (see below), whose sum is σ = 187940619072. Its totient is φ = 187926079012.

The previous prime is 187933349039. The next prime is 187933349063. The reversal of 187933349041 is 140943339781.

187933349041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 140943339781 = 178290784693.

It is a cyclic number.

It is not a de Polignac number, because 187933349041 - 21 = 187933349039 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 187933349041.

It is not an unprimeable number, because it can be changed into a prime (187933349141) 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, 3596101 + ... + 3647986.

It is an arithmetic number, because the mean of its divisors is an integer number (46985154768).

Almost surely, 2187933349041 is an apocalyptic number.

It is an amenable number.

187933349041 is a deficient number, since it is larger than the sum of its proper divisors (7270031).

187933349041 is an equidigital number, since it uses as much as digits as its factorization.

187933349041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270030.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 187933349041 in words is "one hundred eighty-seven billion, nine hundred thirty-three million, three hundred forty-nine thousand, forty-one".

Divisors: 1 25943 7244087 187933349041