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28452060 = 22345713193
BaseRepresentation
bin110110010001…
…0010011011100
31222112111220000
41230202103130
524240431220
62453454300
7463560420
oct154422334
958474800
1028452060
11150734aa
129641390
135b82550
143ac8b80
152770390
hex1b224dc

28452060 has 240 divisors, whose sum is σ = 110421696. Its totient is φ = 5971968.

The previous prime is 28452059. The next prime is 28452077. The reversal of 28452060 is 6025482.

28452060 is a `hidden beast` number, since 2 + 84 + 520 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 147324 + ... + 147516.

Almost surely, 228452060 is an apocalyptic number.

28452060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28452060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55210848).

28452060 is an abundant number, since it is smaller than the sum of its proper divisors (81969636).

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

28452060 is a wasteful number, since it uses less digits than its factorization.

28452060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 28452060 is about 5334.0472438853. The cubic root of 28452060 is about 305.2843715257.

The spelling of 28452060 in words is "twenty-eight million, four hundred fifty-two thousand, sixty".