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1214400013 = 6072000659
BaseRepresentation
bin100100001100010…
…0100011000001101
310010122002220122021
41020120210120031
54441341300023
6320300450141
742044141551
oct11030443015
93118086567
101214400013
11573551782
1229a849951
131647969b8
14b73db861
157193235d
hex4862460d

1214400013 has 4 divisors (see below), whose sum is σ = 1216401280. Its totient is φ = 1212398748.

The previous prime is 1214400007. The next prime is 1214400037. The reversal of 1214400013 is 3100044121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3100044121 = 23134784527.

It is a cyclic number.

It is not a de Polignac number, because 1214400013 - 217 = 1214268941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1214400013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214400043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 999723 + ... + 1000936.

It is an arithmetic number, because the mean of its divisors is an integer number (304100320).

Almost surely, 21214400013 is an apocalyptic number.

It is an amenable number.

1214400013 is a deficient number, since it is larger than the sum of its proper divisors (2001267).

1214400013 is an equidigital number, since it uses as much as digits as its factorization.

1214400013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001266.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1214400013 is about 34848.2426099222. The cubic root of 1214400013 is about 1066.8923171806.

Adding to 1214400013 its reverse (3100044121), we get a palindrome (4314444134).

The spelling of 1214400013 in words is "one billion, two hundred fourteen million, four hundred thousand, thirteen".

Divisors: 1 607 2000659 1214400013