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550431193 = 132311031669
BaseRepresentation
bin100000110011101…
…110100111011001
31102100201210122111
4200303232213121
52111402244233
6130341352321
716432405444
oct4063564731
91370653574
10550431193
11262782114
121344086a1
138a061840
145316265b
15334caacd
hex20cee9d9

550431193 has 16 divisors (see below), whose sum is σ = 619476480. Its totient is φ = 485267904.

The previous prime is 550431163. The next prime is 550431293. The reversal of 550431193 is 391134055.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 550431193 - 213 = 550423001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550431103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328963 + ... + 330631.

It is an arithmetic number, because the mean of its divisors is an integer number (38717280).

Almost surely, 2550431193 is an apocalyptic number.

It is an amenable number.

550431193 is a deficient number, since it is larger than the sum of its proper divisors (69045287).

550431193 is a wasteful number, since it uses less digits than its factorization.

550431193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 550431193 is about 23461.2700636602. The cubic root of 550431193 is about 819.5353271540.

The spelling of 550431193 in words is "five hundred fifty million, four hundred thirty-one thousand, one hundred ninety-three".

Divisors: 1 13 23 299 1103 1669 14339 21697 25369 38387 329797 499031 1840907 23931791 42340861 550431193