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193855041 = 3221539449
BaseRepresentation
bin10111000110111…
…11111001000001
3111111202212010100
423203133321001
5344111330131
631122553013
74542512022
oct1343377101
9444685110
10193855041
119a476186
1254b08769
1331215333
141ba62c49
15120437e6
hexb8dfe41

193855041 has 6 divisors (see below), whose sum is σ = 280012850. Its totient is φ = 129236688.

The previous prime is 193855037. The next prime is 193855073. The reversal of 193855041 is 140558391.

It can be written as a sum of positive squares in only one way, i.e., 99201600 + 94653441 = 9960^2 + 9729^2 .

It is not a de Polignac number, because 193855041 - 22 = 193855037 is a prime.

It is a super-2 number, since 2×1938550412 = 75159553842223362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 193854987 and 193855005.

It is not an unprimeable number, because it can be changed into a prime (193805041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10769716 + ... + 10769733.

Almost surely, 2193855041 is an apocalyptic number.

It is an amenable number.

193855041 is a deficient number, since it is larger than the sum of its proper divisors (86157809).

193855041 is a wasteful number, since it uses less digits than its factorization.

193855041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21539455 (or 21539452 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 193855041 is about 13923.1835799145. The cubic root of 193855041 is about 578.7518153843.

The spelling of 193855041 in words is "one hundred ninety-three million, eight hundred fifty-five thousand, forty-one".

Divisors: 1 3 9 21539449 64618347 193855041