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30342288 = 2435311927
BaseRepresentation
bin111001110111…
…1110010010000
32010002112210110
41303233302100
530231423123
63002201320
7515622324
oct163576220
963075713
1030342288
1116144679
12a1b3240
136394a22
14405b984
1529e5493
hex1cefc90

30342288 has 40 divisors (see below), whose sum is σ = 79869888. Its totient is φ = 9922432.

The previous prime is 30342281. The next prime is 30342329. The reversal of 30342288 is 88224303.

It is not an unprimeable number, because it can be changed into a prime (30342281) 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, 3420 + ... + 8507.

Almost surely, 230342288 is an apocalyptic number.

It is an amenable number.

30342288 is an abundant number, since it is smaller than the sum of its proper divisors (49527600).

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

30342288 is a wasteful number, since it uses less digits than its factorization.

30342288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11991 (or 11985 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 30342288 is about 5508.3834289200. The cubic root of 30342288 is about 311.9005271320.

The spelling of 30342288 in words is "thirty million, three hundred forty-two thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 53 106 159 212 318 424 636 848 1272 2544 11927 23854 35781 47708 71562 95416 143124 190832 286248 572496 632131 1264262 1896393 2528524 3792786 5057048 7585572 10114096 15171144 30342288