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30144345 = 3571126099
BaseRepresentation
bin111001011111…
…1011101011001
32002201111021020
41302333131121
530204104340
62554033053
7514136250
oct162773531
962644236
1030144345
1116019990
12a118789
1363258ba
144009797
1529a69d0
hex1cbf759

30144345 has 32 divisors (see below), whose sum is σ = 60134400. Its totient is φ = 12527040.

The previous prime is 30144341. The next prime is 30144371. The reversal of 30144345 is 54344103.

It is not a de Polignac number, because 30144345 - 22 = 30144341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30144341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11895 + ... + 14204.

It is an arithmetic number, because the mean of its divisors is an integer number (1879200).

Almost surely, 230144345 is an apocalyptic number.

30144345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30144345 is a deficient number, since it is larger than the sum of its proper divisors (29990055).

30144345 is a wasteful number, since it uses less digits than its factorization.

30144345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26125.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 30144345 is about 5490.3865984100. The cubic root of 30144345 is about 311.2208017642.

Adding to 30144345 its reverse (54344103), we get a palindrome (84488448).

The spelling of 30144345 in words is "thirty million, one hundred forty-four thousand, three hundred forty-five".

Divisors: 1 3 5 7 11 15 21 33 35 55 77 105 165 231 385 1155 26099 78297 130495 182693 287089 391485 548079 861267 913465 1435445 2009623 2740395 4306335 6028869 10048115 30144345