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12543532030 = 251254353203
BaseRepresentation
bin10111010111010011…
…10001101111111110
31012101011212110010101
423223221301233332
5201142121011110
65432403231314
7622561156141
oct135351615776
935334773111
1012543532030
1153575512a7
12252097853a
13124b94c003
1486dca6058
154d633713a
hex2eba71bfe

12543532030 has 8 divisors (see below), whose sum is σ = 22578357672. Its totient is φ = 5017412808.

The previous prime is 12543532019. The next prime is 12543532031. The reversal of 12543532030 is 3023534521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12543532030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12543532031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627176592 + ... + 627176611.

It is an arithmetic number, because the mean of its divisors is an integer number (2822294709).

Almost surely, 212543532030 is an apocalyptic number.

12543532030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12543532030 is a deficient number, since it is larger than the sum of its proper divisors (10034825642).

12543532030 is a wasteful number, since it uses less digits than its factorization.

12543532030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254353210.

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 12543532030 in words is "twelve billion, five hundred forty-three million, five hundred thirty-two thousand, thirty".

Divisors: 1 2 5 10 1254353203 2508706406 6271766015 12543532030