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12542300030 = 251396479231
BaseRepresentation
bin10111010111001010…
…00100111101111110
31012101002112212010202
423223211010331332
5201141312100110
65432321003502
7622544535251
oct135345047576
935332485122
1012542300030
11535688a717
122520483592
13124b60a310
1486da65098
154d61920a5
hex2eb944f7e

12542300030 has 16 divisors (see below), whose sum is σ = 24312766464. Its totient is φ = 4631003040.

The previous prime is 12542299981. The next prime is 12542300041. The reversal of 12542300030 is 3000324521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12542299975 and 12542300011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48239486 + ... + 48239745.

It is an arithmetic number, because the mean of its divisors is an integer number (1519547904).

Almost surely, 212542300030 is an apocalyptic number.

12542300030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12542300030 is a deficient number, since it is larger than the sum of its proper divisors (11770466434).

12542300030 is a wasteful number, since it uses less digits than its factorization.

12542300030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96479251.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 12542300030 its reverse (3000324521), we get a palindrome (15542624551).

The spelling of 12542300030 in words is "twelve billion, five hundred forty-two million, three hundred thousand, thirty".

Divisors: 1 2 5 10 13 26 65 130 96479231 192958462 482396155 964792310 1254230003 2508460006 6271150015 12542300030