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30338112 = 263722573
BaseRepresentation
bin111001110111…
…0110001000000
32010002100001210
41303232301000
530231304422
63002130120
7515604210
oct163566100
963070053
1030338112
1116141522
12a1b0940
136392b5c
14405a240
1529e410c
hex1ceec40

30338112 has 56 divisors (see below), whose sum is σ = 91740736. Its totient is φ = 8667648.

The previous prime is 30338111. The next prime is 30338131. The reversal of 30338112 is 21183303.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (30338111) 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, 9943 + ... + 12630.

Almost surely, 230338112 is an apocalyptic number.

30338112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30338112 is an abundant number, since it is smaller than the sum of its proper divisors (61402624).

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

30338112 is a wasteful number, since it uses less digits than its factorization.

30338112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22595 (or 22585 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30338112 is about 5508.0043572968. The cubic root of 30338112 is about 311.8862175501.

The spelling of 30338112 in words is "thirty million, three hundred thirty-eight thousand, one hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 1344 22573 45146 67719 90292 135438 158011 180584 270876 316022 361168 474033 541752 632044 722336 948066 1083504 1264088 1444672 1896132 2167008 2528176 3792264 4334016 5056352 7584528 10112704 15169056 30338112