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30135588 = 2237253967
BaseRepresentation
bin111001011110…
…1010100100100
32002201001020220
41302331110210
530203314323
62553524340
7514101600
oct162752444
962631226
1030135588
111601334a
12a1136b0
136321912
144006500
1529a40e3
hex1cbd524

30135588 has 72 divisors (see below), whose sum is σ = 83426112. Its totient is φ = 8438976.

The previous prime is 30135569. The next prime is 30135613. The reversal of 30135588 is 88553103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30681 + ... + 31647.

It is an arithmetic number, because the mean of its divisors is an integer number (1158696).

Almost surely, 230135588 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 30135588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41713056).

30135588 is an abundant number, since it is smaller than the sum of its proper divisors (53290524).

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

30135588 is a wasteful number, since it uses less digits than its factorization.

30135588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1032 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 30135588 is about 5489.5890556580. The cubic root of 30135588 is about 311.1906620645.

The spelling of 30135588 in words is "thirty million, one hundred thirty-five thousand, five hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 53 84 98 106 147 159 196 212 294 318 371 588 636 742 967 1113 1484 1934 2226 2597 2901 3868 4452 5194 5802 6769 7791 10388 11604 13538 15582 20307 27076 31164 40614 47383 51251 81228 94766 102502 142149 153753 189532 205004 284298 307506 358757 568596 615012 717514 1076271 1435028 2152542 2511299 4305084 5022598 7533897 10045196 15067794 30135588