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523934917 = 111723611997
BaseRepresentation
bin11111001110101…
…001110011000101
31100111212122120221
4133032221303011
52033111404132
6123553424341
715661242022
oct3716516305
91314778527
10523934917
11249825070
1212756b0b1
138471557c
144d826549
1530ee4e97
hex1f3a9cc5

523934917 has 32 divisors (see below), whose sum is σ = 642173184. Its totient is φ = 421555200.

The previous prime is 523934903. The next prime is 523934923. The reversal of 523934917 is 719439325.

It is not a de Polignac number, because 523934917 - 211 = 523932869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523934417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261363 + ... + 263359.

It is an arithmetic number, because the mean of its divisors is an integer number (20067912).

Almost surely, 2523934917 is an apocalyptic number.

It is an amenable number.

523934917 is a deficient number, since it is larger than the sum of its proper divisors (118238267).

523934917 is a wasteful number, since it uses less digits than its factorization.

523934917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109.

The product of its digits is 204120, while the sum is 43.

The square root of 523934917 is about 22889.6246583468. The cubic root of 523934917 is about 806.1684186268.

The spelling of 523934917 in words is "five hundred twenty-three million, nine hundred thirty-four thousand, nine hundred seventeen".

Divisors: 1 11 17 23 61 187 253 391 671 1037 1403 1997 4301 11407 15433 21967 23851 33949 45931 121817 262361 373439 505241 780827 1339987 2070889 2801791 8589097 22779779 30819701 47630447 523934917