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21413001513 = 325137617561
BaseRepresentation
bin10011111100010100…
…000111100100101001
32001021022100011221010
4103330110013210221
5322323212022023
613500442534133
71355430336561
oct237424074451
961238304833
1021413001513
119099098a72
124197207349
1320333591c7
141071c1dda1
15854d2d093
hex4fc507929

21413001513 has 16 divisors (see below), whose sum is σ = 28675829952. Its totient is φ = 14212800000.

The previous prime is 21413001503. The next prime is 21413001523. The reversal of 21413001513 is 31510031412.

It is an interprime number because it is at equal distance from previous prime (21413001503) and next prime (21413001523).

It is not a de Polignac number, because 21413001513 - 213 = 21412993321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21413001513.

It is not an unprimeable number, because it can be changed into a prime (21413001503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2828253 + ... + 2835813.

It is an arithmetic number, because the mean of its divisors is an integer number (1792239372).

Almost surely, 221413001513 is an apocalyptic number.

It is an amenable number.

21413001513 is a deficient number, since it is larger than the sum of its proper divisors (7262828439).

21413001513 is a wasteful number, since it uses less digits than its factorization.

21413001513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11576.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 21413001513 its reverse (31510031412), we get a palindrome (52923032925).

The spelling of 21413001513 in words is "twenty-one billion, four hundred thirteen million, one thousand, five hundred thirteen".

Divisors: 1 3 251 753 3761 7561 11283 22683 944011 1897811 2832033 5693433 28436921 85310763 7137667171 21413001513