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28468030 = 25171511109
BaseRepresentation
bin110110010011…
…0001100111110
31222120022210111
41230212030332
524241434110
62454100234
7463655113
oct154461476
958508714
1028468030
11150844a8
12964a67a
135b898b6
143ad090a
152774e8a
hex1b2633e

28468030 has 32 divisors (see below), whose sum is σ = 54665280. Its totient is φ = 10636800.

The previous prime is 28468019. The next prime is 28468039. The reversal of 28468030 is 3086482.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28467983 and 28468001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28468039) 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, 25116 + ... + 26224.

It is an arithmetic number, because the mean of its divisors is an integer number (1708290).

Almost surely, 228468030 is an apocalyptic number.

28468030 is a deficient number, since it is larger than the sum of its proper divisors (26197250).

28468030 is a wasteful number, since it uses less digits than its factorization.

28468030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 28468030 is about 5335.5440209973. The cubic root of 28468030 is about 305.3414790430.

The spelling of 28468030 in words is "twenty-eight million, four hundred sixty-eight thousand, thirty".

Divisors: 1 2 5 10 17 34 85 151 170 302 755 1109 1510 2218 2567 5134 5545 11090 12835 18853 25670 37706 94265 167459 188530 334918 837295 1674590 2846803 5693606 14234015 28468030