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3213042013 = 25712502109
BaseRepresentation
bin1011111110000011…
…0010000101011101
322021220220110001001
42333200302011131
523040014321023
61250454350301
7142423256266
oct27740620535
98256813031
103213042013
1113a9751025
1275805b391
133c2886bbc
14226a2196d
1513c1276ad
hexbf83215d

3213042013 has 4 divisors (see below), whose sum is σ = 3225544380. Its totient is φ = 3200539648.

The previous prime is 3213041999. The next prime is 3213042029. The reversal of 3213042013 is 3102403123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3102403123 = 3673844651.

It can be written as a sum of positive squares in 2 ways, for example, as 3167100729 + 45941284 = 56277^2 + 6778^2 .

It is a cyclic number.

It is not a de Polignac number, because 3213042013 - 213 = 3213033821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213042073) 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 3 ways as a sum of consecutive naturals, for example, 6250798 + ... + 6251311.

It is an arithmetic number, because the mean of its divisors is an integer number (806386095).

Almost surely, 23213042013 is an apocalyptic number.

It is an amenable number.

3213042013 is a deficient number, since it is larger than the sum of its proper divisors (12502367).

3213042013 is a wasteful number, since it uses less digits than its factorization.

3213042013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12502366.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 3213042013 is about 56683.7014758211. The cubic root of 3213042013 is about 1475.6118519530.

Adding to 3213042013 its reverse (3102403123), we get a palindrome (6315445136).

The spelling of 3213042013 in words is "three billion, two hundred thirteen million, forty-two thousand, thirteen".

Divisors: 1 257 12502109 3213042013