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538679688 = 23323975869
BaseRepresentation
bin100000000110111…
…001100110001000
31101112121202121120
4200012321212020
52100400222223
6125241435240
716230462501
oct4006714610
91345552546
10538679688
11257086028
1213049bb20
13877a89a1
1451783ba8
1532458be3
hex201b9988

538679688 has 32 divisors (see below), whose sum is σ = 1405252800. Its totient is φ = 171752768.

The previous prime is 538679681. The next prime is 538679693. The reversal of 538679688 is 886976835.

It is not an unprimeable number, because it can be changed into a prime (538679681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487383 + ... + 488486.

It is an arithmetic number, because the mean of its divisors is an integer number (43914150).

Almost surely, 2538679688 is an apocalyptic number.

It is an amenable number.

538679688 is an abundant number, since it is smaller than the sum of its proper divisors (866573112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

538679688 is a wasteful number, since it uses less digits than its factorization.

538679688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975901 (or 975897 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 60.

The square root of 538679688 is about 23209.4741000308. The cubic root of 538679688 is about 813.6610621982.

The spelling of 538679688 in words is "five hundred thirty-eight million, six hundred seventy-nine thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 552 975869 1951738 2927607 3903476 5855214 7806952 11710428 22444987 23420856 44889974 67334961 89779948 134669922 179559896 269339844 538679688