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532638028 = 221347217937
BaseRepresentation
bin11111101111110…
…110100101001100
31101010020211000101
4133233312211030
52042323404103
6124504140444
716125230356
oct3757664514
91333224011
10532638028
1125372991a
1212a467724
1386471a40
1450a500d6
1531b63a1d
hex1fbf694c

532638028 has 24 divisors (see below), whose sum is σ = 1025180352. Its totient is φ = 240601344.

The previous prime is 532638019. The next prime is 532638049. The reversal of 532638028 is 820836235.

It is a super-3 number, since 3×5326380283 (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106525 + ... + 111412.

It is an arithmetic number, because the mean of its divisors is an integer number (42715848).

Almost surely, 2532638028 is an apocalyptic number.

It is an amenable number.

532638028 is a deficient number, since it is larger than the sum of its proper divisors (492542324).

532638028 is a wasteful number, since it uses less digits than its factorization.

532638028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218001 (or 217999 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 532638028 is about 23078.9520559318. The cubic root of 532638028 is about 810.6076971938.

The spelling of 532638028 in words is "five hundred thirty-two million, six hundred thirty-eight thousand, twenty-eight".

Divisors: 1 2 4 13 26 47 52 94 188 611 1222 2444 217937 435874 871748 2833181 5666362 10243039 11332724 20486078 40972156 133159507 266319014 532638028