Search a number
-
+
193745641 = 1917358943
BaseRepresentation
bin10111000110001…
…01001011101001
3111111120022001111
423203011023221
5344044330031
631120350321
74541545045
oct1343051351
9444508044
10193745641
119a400a71
1254a753a1
13311a75bb
141ba35025
15120211b1
hexb8c52e9

193745641 has 8 divisors (see below), whose sum is σ = 205125120. Its totient is φ = 182484432.

The previous prime is 193745633. The next prime is 193745663. The reversal of 193745641 is 146547391.

193745641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 193745641 - 23 = 193745633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 193745594 and 193745603.

It is not an unprimeable number, because it can be changed into a prime (193745611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26185 + ... + 32758.

It is an arithmetic number, because the mean of its divisors is an integer number (25640640).

Almost surely, 2193745641 is an apocalyptic number.

It is an amenable number.

193745641 is a deficient number, since it is larger than the sum of its proper divisors (11379479).

193745641 is a wasteful number, since it uses less digits than its factorization.

193745641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59135.

The product of its digits is 90720, while the sum is 40.

The square root of 193745641 is about 13919.2543262921. The cubic root of 193745641 is about 578.6429241178.

The spelling of 193745641 in words is "one hundred ninety-three million, seven hundred forty-five thousand, six hundred forty-one".

Divisors: 1 19 173 3287 58943 1119917 10197139 193745641