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30141012 = 22311228341
BaseRepresentation
bin111001011111…
…0101001010100
32002201022200210
41302332221110
530204003022
62554005420
7514123446
oct162765124
962638623
1030141012
1116017430
12a116870
136324225
144008496
1529a5a0c
hex1cbea54

30141012 has 24 divisors (see below), whose sum is σ = 76722912. Its totient is φ = 9133600.

The previous prime is 30140989. The next prime is 30141019. The reversal of 30141012 is 21014103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 (30141019) 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, 114039 + ... + 114302.

It is an arithmetic number, because the mean of its divisors is an integer number (3196788).

Almost surely, 230141012 is an apocalyptic number.

It is an amenable number.

30141012 is an abundant number, since it is smaller than the sum of its proper divisors (46581900).

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

30141012 is a wasteful number, since it uses less digits than its factorization.

30141012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228359 (or 228357 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 30141012 is about 5490.0830594810. The cubic root of 30141012 is about 311.2093309873.

Adding to 30141012 its reverse (21014103), we get a palindrome (51155115).

It can be divided in two parts, 3014101 and 2, that added together give a palindrome (3014103).

The spelling of 30141012 in words is "thirty million, one hundred forty-one thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 228341 456682 685023 913364 1370046 2511751 2740092 5023502 7535253 10047004 15070506 30141012