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30143014 = 211731372
BaseRepresentation
bin111001011111…
…1001000100110
32002201102102221
41302333020212
530204034024
62554022554
7514132336
oct162771046
962642387
1030143014
1116018990
12a117a5a
136325105
1440090c6
1529a63e4
hex1cbf226

30143014 has 24 divisors (see below), whose sum is σ = 50368248. Its totient is φ = 13415040.

The previous prime is 30143011. The next prime is 30143017. The reversal of 30143014 is 41034103.

It is an interprime number because it is at equal distance from previous prime (30143011) and next prime (30143017).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30143011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219954 + ... + 220090.

It is an arithmetic number, because the mean of its divisors is an integer number (2098677).

Almost surely, 230143014 is an apocalyptic number.

30143014 is a deficient number, since it is larger than the sum of its proper divisors (20225234).

30143014 is a wasteful number, since it uses less digits than its factorization.

30143014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30143014 is about 5490.2653852068. The cubic root of 30143014 is about 311.2162211263.

Adding to 30143014 its reverse (41034103), we get a palindrome (71177117).

The spelling of 30143014 in words is "thirty million, one hundred forty-three thousand, fourteen".

Divisors: 1 2 11 22 73 137 146 274 803 1507 1606 3014 10001 18769 20002 37538 110011 206459 220022 412918 1370137 2740274 15071507 30143014