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1200032013 = 31103362657
BaseRepresentation
bin100011110000111…
…0000100100001101
310002122001221110010
41013201300210031
54424202011023
6315024503433
741511050415
oct10741604415
93078057403
101200032013
115664288a4
12295a7ab79
13161805c1b
14b553b645
1570545093
hex4787090d

1200032013 has 8 divisors (see below), whose sum is σ = 1601497728. Its totient is φ = 799293824.

The previous prime is 1200031999. The next prime is 1200032021. The reversal of 1200032013 is 3102300021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1200032013 - 24 = 1200031997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1200032013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200032213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178020 + ... + 184637.

It is an arithmetic number, because the mean of its divisors is an integer number (200187216).

Almost surely, 21200032013 is an apocalyptic number.

It is an amenable number.

1200032013 is a deficient number, since it is larger than the sum of its proper divisors (401465715).

1200032013 is a wasteful number, since it uses less digits than its factorization.

1200032013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363763.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1200032013 is about 34641.4782161501. The cubic root of 1200032013 is about 1062.6680187899.

Adding to 1200032013 its reverse (3102300021), we get a palindrome (4302332034).

The spelling of 1200032013 in words is "one billion, two hundred million, thirty-two thousand, thirteen".

Divisors: 1 3 1103 3309 362657 1087971 400010671 1200032013