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1200422013 = 37431329371
BaseRepresentation
bin100011110001100…
…1111110001111101
310002122210202102120
41013203033301331
54424302001023
6315041113153
741514263430
oct10743176175
93078722376
101200422013
1156667490a
122960287b9
131619115ab
14b55dd817
15705c08e3
hex478cfc7d

1200422013 has 16 divisors (see below), whose sum is σ = 1871755776. Its totient is φ = 670002480.

The previous prime is 1200421987. The next prime is 1200422023. The reversal of 1200422013 is 3102240021.

It is not a de Polignac number, because 1200422013 - 26 = 1200421949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200421983 and 1200422001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200422023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 663783 + ... + 665588.

It is an arithmetic number, because the mean of its divisors is an integer number (116984736).

Almost surely, 21200422013 is an apocalyptic number.

It is an amenable number.

1200422013 is a deficient number, since it is larger than the sum of its proper divisors (671333763).

1200422013 is a wasteful number, since it uses less digits than its factorization.

1200422013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329424.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1200422013 is about 34647.1068489131. The cubic root of 1200422013 is about 1062.7831256188.

Adding to 1200422013 its reverse (3102240021), we get a palindrome (4302662034).

The spelling of 1200422013 in words is "one billion, two hundred million, four hundred twenty-two thousand, thirteen".

Divisors: 1 3 7 21 43 129 301 903 1329371 3988113 9305597 27916791 57162953 171488859 400140671 1200422013