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30183144 = 2334672693
BaseRepresentation
bin111001100100…
…0111011101000
32002210110111020
41303020323220
530211330034
62554532440
7514360335
oct163107350
962713436
1030183144
1116046052
12a137120
13633a464
14401998c
1529b3249
hex1cc8ee8

30183144 has 32 divisors (see below), whose sum is σ = 75647520. Its totient is φ = 10035776.

The previous prime is 30183133. The next prime is 30183149. The reversal of 30183144 is 44138103.

It is a super-2 number, since 2×301831442 = 1822044363449472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (30183149) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9862 + ... + 12554.

It is an arithmetic number, because the mean of its divisors is an integer number (2363985).

Almost surely, 230183144 is an apocalyptic number.

It is an amenable number.

30183144 is an abundant number, since it is smaller than the sum of its proper divisors (45464376).

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

30183144 is a wasteful number, since it uses less digits than its factorization.

30183144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169 (or 3165 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 30183144 is about 5493.9188199317. The cubic root of 30183144 is about 311.3542693511.

The spelling of 30183144 in words is "thirty million, one hundred eighty-three thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 467 934 1401 1868 2693 2802 3736 5386 5604 8079 10772 11208 16158 21544 32316 64632 1257631 2515262 3772893 5030524 7545786 10061048 15091572 30183144