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28676484 = 22331715619
BaseRepresentation
bin110110101100…
…1000110000100
31222221220202000
41231121012010
524320121414
62502345300
7465513624
oct155310604
958856660
1028676484
1115207081
12972b230
135c30745
143b46884
1527b6b09
hex1b59184

28676484 has 48 divisors (see below), whose sum is σ = 78724800. Its totient is φ = 8995968.

The previous prime is 28676477. The next prime is 28676489. The reversal of 28676484 is 48467682.

It is not an unprimeable number, because it can be changed into a prime (28676489) 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 15 ways as a sum of consecutive naturals, for example, 5974 + ... + 9645.

It is an arithmetic number, because the mean of its divisors is an integer number (1640100).

Almost surely, 228676484 is an apocalyptic number.

It is an amenable number.

28676484 is an abundant number, since it is smaller than the sum of its proper divisors (50048316).

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

28676484 is a wasteful number, since it uses less digits than its factorization.

28676484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15649 (or 15641 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 28676484 is about 5355.0428569714. The cubic root of 28676484 is about 306.0849437382.

The spelling of 28676484 in words is "twenty-eight million, six hundred seventy-six thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 17 18 27 34 36 51 54 68 102 108 153 204 306 459 612 918 1836 15619 31238 46857 62476 93714 140571 187428 265523 281142 421713 531046 562284 796569 843426 1062092 1593138 1686852 2389707 3186276 4779414 7169121 9558828 14338242 28676484