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12006210503 = 73161907019
BaseRepresentation
bin10110010111010000…
…00011101111000111
31010222201210200120002
423023220003233013
5144042042214003
65303210431515
7603345051110
oct131350035707
933881720502
1012006210503
115101213721
1223b0a3259b
13119452a591
1481c797207
154a409aa88
hex2cba03bc7

12006210503 has 16 divisors (see below), whose sum is σ = 14396221440. Its totient is φ = 9795794400.

The previous prime is 12006210499. The next prime is 12006210521. The reversal of 12006210503 is 30501260021.

It is not a de Polignac number, because 12006210503 - 22 = 12006210499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12006210533) 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, 440273 + ... + 466746.

It is an arithmetic number, because the mean of its divisors is an integer number (899763840).

Almost surely, 212006210503 is an apocalyptic number.

12006210503 is a deficient number, since it is larger than the sum of its proper divisors (2390010937).

12006210503 is an equidigital number, since it uses as much as digits as its factorization.

12006210503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907118.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 12006210503 its reverse (30501260021), we get a palindrome (42507470524).

The spelling of 12006210503 in words is "twelve billion, six million, two hundred ten thousand, five hundred three".

Divisors: 1 7 31 61 217 427 1891 13237 907019 6349133 28117589 55328159 196823123 387297113 1715172929 12006210503