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12132003020 = 2251095565139
BaseRepresentation
bin10110100110001111…
…11010110011001100
31011022111111121110012
423103013322303030
5144321243044040
65323502532352
7606433216124
oct132307726314
934274447405
1012132003020
115166221485
122426b970b8
1311b4601c17
1483137dc84
154b0147865
hex2d31faccc

12132003020 has 24 divisors (see below), whose sum is σ = 25710946800. Its totient is φ = 4808279232.

The previous prime is 12132003019. The next prime is 12132003053. The reversal of 12132003020 is 2030023121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12132002986 and 12132003004.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2780390 + ... + 2784749.

It is an arithmetic number, because the mean of its divisors is an integer number (1071289450).

Almost surely, 212132003020 is an apocalyptic number.

12132003020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12132003020 is an abundant number, since it is smaller than the sum of its proper divisors (13578943780).

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

12132003020 is a wasteful number, since it uses less digits than its factorization.

12132003020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5565257 (or 5565255 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12132003020 its reverse (2030023121), we get a palindrome (14162026141).

The spelling of 12132003020 in words is "twelve billion, one hundred thirty-two million, three thousand, twenty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 5565139 11130278 22260556 27825695 55651390 111302780 606600151 1213200302 2426400604 3033000755 6066001510 12132003020