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30215088 = 24323753107
BaseRepresentation
bin111001101000…
…0101110110000
32002212002022100
41303100232300
530213340323
62555340400
7514552431
oct163205660
962762270
1030215088
1116068052
12a151700
13634bb67
144027488
1529bc943
hex1cd0bb0

30215088 has 120 divisors (see below), whose sum is σ = 89311248. Its totient is φ = 9524736.

The previous prime is 30215063. The next prime is 30215089. The reversal of 30215088 is 88051203.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30215089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282331 + ... + 282437.

Almost surely, 230215088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30215088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44655624).

30215088 is an abundant number, since it is smaller than the sum of its proper divisors (59096160).

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

30215088 is a wasteful number, since it uses less digits than its factorization.

30215088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 30215088 is about 5496.8252655510. The cubic root of 30215088 is about 311.4640700854.

The spelling of 30215088 in words is "thirty million, two hundred fifteen thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 37 48 53 72 74 106 107 111 144 148 159 212 214 222 296 318 321 333 424 428 444 477 592 636 642 666 848 856 888 954 963 1272 1284 1332 1712 1776 1908 1926 1961 2544 2568 2664 3816 3852 3922 3959 5136 5328 5671 5883 7632 7704 7844 7918 11342 11766 11877 15408 15688 15836 17013 17649 22684 23532 23754 31376 31672 34026 35298 35631 45368 47064 47508 51039 63344 68052 70596 71262 90736 94128 95016 102078 136104 141192 142524 190032 204156 209827 272208 282384 285048 408312 419654 570096 629481 816624 839308 1258962 1678616 1888443 2517924 3357232 3776886 5035848 7553772 10071696 15107544 30215088