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538131932 = 221310348691
BaseRepresentation
bin100000000100110…
…011110111011100
31101111120221020022
4200010303313130
52100230210212
6125222011312
716223021522
oct4004636734
91344527208
10538131932
11256841538
12130276b38
1387646580
1451680312
153239b772
hex20133ddc

538131932 has 12 divisors (see below), whose sum is σ = 1014171816. Its totient is φ = 248368560.

The previous prime is 538131871. The next prime is 538131941. The reversal of 538131932 is 239131835.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 538131892 and 538131901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5174294 + ... + 5174397.

It is an arithmetic number, because the mean of its divisors is an integer number (84514318).

Almost surely, 2538131932 is an apocalyptic number.

538131932 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

538131932 is a deficient number, since it is larger than the sum of its proper divisors (476039884).

538131932 is a wasteful number, since it uses less digits than its factorization.

538131932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10348708 (or 10348706 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 538131932 is about 23197.6708313572. The cubic root of 538131932 is about 813.3851784712.

The spelling of 538131932 in words is "five hundred thirty-eight million, one hundred thirty-one thousand, nine hundred thirty-two".

Divisors: 1 2 4 13 26 52 10348691 20697382 41394764 134532983 269065966 538131932