Search a number
-
+
193150231 is a prime number
BaseRepresentation
bin10111000001100…
…11110100010111
3111110110001022021
423200303310113
5343421301411
631055514011
74533515131
oct1340636427
9443401267
10193150231
119a03469a
1254828907
13310295a1
141b91c051
1511e54a71
hexb833d17

193150231 has 2 divisors, whose sum is σ = 193150232. Its totient is φ = 193150230.

The previous prime is 193150229. The next prime is 193150261. The reversal of 193150231 is 132051391.

It is a weak prime.

It is an emirp because it is prime and its reverse (132051391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 193150231 - 21 = 193150229 is a prime.

It is a super-2 number, since 2×1931502312 = 74614023470706722, which contains 22 as substring.

Together with 193150229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 193150196 and 193150205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193150261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96575115 + 96575116.

It is an arithmetic number, because the mean of its divisors is an integer number (96575116).

Almost surely, 2193150231 is an apocalyptic number.

193150231 is a deficient number, since it is larger than the sum of its proper divisors (1).

193150231 is an equidigital number, since it uses as much as digits as its factorization.

193150231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 193150231 is about 13897.8498696741. The cubic root of 193150231 is about 578.0495631241.

The spelling of 193150231 in words is "one hundred ninety-three million, one hundred fifty thousand, two hundred thirty-one".