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32828028 = 22337107691
BaseRepresentation
bin111110100111…
…0101001111100
32021202211120220
41331032221330
531400444103
63131341340
7546014352
oct175165174
967684526
1032828028
1117592202
12abb1850
136a5528c
1445077d2
152d36c53
hex1f4ea7c

32828028 has 48 divisors (see below), whose sum is σ = 79519104. Its totient is φ = 10532160.

The previous prime is 32828023. The next prime is 32828083. The reversal of 32828028 is 82082823.

It is a self number, because there is not a number n which added to its sum of digits gives 32828028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32828021) 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, 47163 + ... + 47853.

It is an arithmetic number, because the mean of its divisors is an integer number (1656648).

Almost surely, 232828028 is an apocalyptic number.

It is an amenable number.

32828028 is an abundant number, since it is smaller than the sum of its proper divisors (46691076).

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

32828028 is a wasteful number, since it uses less digits than its factorization.

32828028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 32828028 is about 5729.5748533377. The cubic root of 32828028 is about 320.1952844465.

The spelling of 32828028 in words is "thirty-two million, eight hundred twenty-eight thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 37 74 107 111 148 214 222 321 428 444 642 691 1284 1382 2073 2764 3959 4146 7918 8292 11877 15836 23754 25567 47508 51134 73937 76701 102268 147874 153402 221811 295748 306804 443622 887244 2735669 5471338 8207007 10942676 16414014 32828028