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30028264 = 237536219
BaseRepresentation
bin111001010001…
…1000111101000
32002111121000221
41302203013220
530141401024
62551335424
7513143650
oct162430750
962447027
1030028264
1115a4a752
12a081574
1362b4b06
143db9360
1529823e4
hex1ca31e8

30028264 has 16 divisors (see below), whose sum is σ = 64346400. Its totient is φ = 12869232.

The previous prime is 30028259. The next prime is 30028267. The reversal of 30028264 is 46282003.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30028267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268054 + ... + 268165.

It is an arithmetic number, because the mean of its divisors is an integer number (4021650).

Almost surely, 230028264 is an apocalyptic number.

It is an amenable number.

30028264 is an abundant number, since it is smaller than the sum of its proper divisors (34318136).

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

30028264 is a wasteful number, since it uses less digits than its factorization.

30028264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536232 (or 536228 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 30028264 is about 5479.8051060234. The cubic root of 30028264 is about 310.8208008773.

The spelling of 30028264 in words is "thirty million, twenty-eight thousand, two hundred sixty-four".

Divisors: 1 2 4 7 8 14 28 56 536219 1072438 2144876 3753533 4289752 7507066 15014132 30028264