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12542070012 = 2231988762017
BaseRepresentation
bin10111010111001000…
…01100110011111100
31012101002010011121120
423223210030303330
5201141232220022
65432312030540
7622542556533
oct135344146374
935332104546
1012542070012
11535674291a
122520392450
13124b559704
1486da0531a
154d6148d5c
hex2eb90ccfc

12542070012 has 48 divisors (see below), whose sum is σ = 30840311040. Its totient is φ = 3956124672.

The previous prime is 12542069999. The next prime is 12542070019. The reversal of 12542070012 is 21007024521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542070019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171228 + ... + 233244.

It is an arithmetic number, because the mean of its divisors is an integer number (642506480).

Almost surely, 212542070012 is an apocalyptic number.

12542070012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12542070012 is an abundant number, since it is smaller than the sum of its proper divisors (18298241028).

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

12542070012 is a wasteful number, since it uses less digits than its factorization.

12542070012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62930 (or 62928 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

Adding to 12542070012 its reverse (21007024521), we get a palindrome (33549094533).

The spelling of 12542070012 in words is "twelve billion, five hundred forty-two million, seventy thousand, twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 887 1774 2661 3548 5322 10644 16853 33706 50559 62017 67412 101118 124034 186051 202236 248068 372102 744204 1178323 2356646 3534969 4713292 7069938 14139876 55009079 110018158 165027237 220036316 330054474 660108948 1045172501 2090345002 3135517503 4180690004 6271035006 12542070012