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28860060 = 2235481001
BaseRepresentation
bin110111000010…
…1111010011100
32000022020120010
41232011322130
524342010220
62510323220
7500210055
oct156057234
960266503
1028860060
1115321a99
1297b9510
135c96178
143b9372c
1528011e0
hex1b85e9c

28860060 has 24 divisors (see below), whose sum is σ = 80808336. Its totient is φ = 7696000.

The previous prime is 28860059. The next prime is 28860061. The reversal of 28860060 is 6006882.

It is an interprime number because it is at equal distance from previous prime (28860059) and next prime (28860061).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28860061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240441 + ... + 240560.

It is an arithmetic number, because the mean of its divisors is an integer number (3367014).

Almost surely, 228860060 is an apocalyptic number.

28860060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28860060 is an abundant number, since it is smaller than the sum of its proper divisors (51948276).

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

28860060 is a wasteful number, since it uses less digits than its factorization.

28860060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481013 (or 481011 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 28860060 is about 5372.1559917783. The cubic root of 28860060 is about 306.7367016059.

The spelling of 28860060 in words is "twenty-eight million, eight hundred sixty thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 481001 962002 1443003 1924004 2405005 2886006 4810010 5772012 7215015 9620020 14430030 28860060