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12142030143 = 313156354877
BaseRepresentation
bin10110100111011100…
…01010110100111111
31011100012101001002010
423103232022310333
5144331324431033
65324501502303
7606614360535
oct132356126477
934305331063
1012142030143
11517094aa61
12242a411993
1311b6702c29
14832830155
154b0e78863
hex2d3b8ad3f

12142030143 has 16 divisors (see below), whose sum is σ = 16342229376. Its totient is φ = 8018481120.

The previous prime is 12142030141. The next prime is 12142030169. The reversal of 12142030143 is 34103024121.

It is not a de Polignac number, because 12142030143 - 21 = 12142030141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142030141) 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, 193821 + ... + 248697.

It is an arithmetic number, because the mean of its divisors is an integer number (1021389336).

Almost surely, 212142030143 is an apocalyptic number.

12142030143 is a deficient number, since it is larger than the sum of its proper divisors (4200199233).

12142030143 is a wasteful number, since it uses less digits than its factorization.

12142030143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55574.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12142030143 its reverse (34103024121), we get a palindrome (46245054264).

The spelling of 12142030143 in words is "twelve billion, one hundred forty-two million, thirty thousand, one hundred forty-three".

Divisors: 1 3 131 393 563 1689 54877 73753 164631 221259 7188887 21566661 30895751 92687253 4047343381 12142030143