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30144044 = 2275971257
BaseRepresentation
bin111001011111…
…1011000101100
32002201110212002
41302333120230
530204102134
62554031432
7514135340
oct162773054
962643762
1030144044
1116019737
12a118578
136325718
144009620
1529a687e
hex1cbf62c

30144044 has 48 divisors (see below), whose sum is σ = 62415360. Its totient is φ = 12472320.

The previous prime is 30144029. The next prime is 30144047. The reversal of 30144044 is 44044103.

It is not an unprimeable number, because it can be changed into a prime (30144047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117164 + ... + 117420.

It is an arithmetic number, because the mean of its divisors is an integer number (1300320).

Almost surely, 230144044 is an apocalyptic number.

It is an amenable number.

30144044 is an abundant number, since it is smaller than the sum of its proper divisors (32271316).

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

30144044 is a wasteful number, since it uses less digits than its factorization.

30144044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 30144044 is about 5490.3591867928. The cubic root of 30144044 is about 311.2197658842.

Adding to 30144044 its reverse (44044103), we get a palindrome (74188147).

The spelling of 30144044 in words is "thirty million, one hundred forty-four thousand, forty-four".

Divisors: 1 2 4 7 14 28 59 71 118 142 236 257 284 413 497 514 826 994 1028 1652 1799 1988 3598 4189 7196 8378 15163 16756 18247 29323 30326 36494 58646 60652 72988 106141 117292 127729 212282 255458 424564 510916 1076573 2153146 4306292 7536011 15072022 30144044