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1320241293 = 32720956211
BaseRepresentation
bin100111010110001…
…0100100010001101
310102000021012120200
41032230110202031
510200440210133
6335001204113
744500602660
oct11654244215
93360235520
101320241293
11618272908
1230a190639
131806a4187
14c74ad6d7
157ad8c913
hex4eb1488d

1320241293 has 12 divisors (see below), whose sum is σ = 2179446048. Its totient is φ = 754423560.

The previous prime is 1320241271. The next prime is 1320241297. The reversal of 1320241293 is 3921420231.

It is a happy number.

1320241293 is a `hidden beast` number, since 132 + 0 + 241 + 293 = 666.

It is not a de Polignac number, because 1320241293 - 25 = 1320241261 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320241297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10478043 + ... + 10478168.

It is an arithmetic number, because the mean of its divisors is an integer number (181620504).

Almost surely, 21320241293 is an apocalyptic number.

It is an amenable number.

1320241293 is a deficient number, since it is larger than the sum of its proper divisors (859204755).

1320241293 is a wasteful number, since it uses less digits than its factorization.

1320241293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20956224 (or 20956221 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1320241293 is about 36335.1247830526. The cubic root of 1320241293 is about 1097.0281470923.

The spelling of 1320241293 in words is "one billion, three hundred twenty million, two hundred forty-one thousand, two hundred ninety-three".

Divisors: 1 3 7 9 21 63 20956211 62868633 146693477 188605899 440080431 1320241293