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1300799421 = 321726333229
BaseRepresentation
bin100110110001000…
…1001111110111101
310100122200110100100
41031202021332331
510131001040141
6333024351313
744143420065
oct11542117675
93318613310
101300799421
116082a3949
12303775539
13179657acc
14c4a8c3a5
15792ec0b6
hex4d889fbd

1300799421 has 24 divisors (see below), whose sum is σ = 1990829880. Its totient is φ = 815625216.

The previous prime is 1300799411. The next prime is 1300799473. The reversal of 1300799421 is 1249970031.

It can be written as a sum of positive squares in 4 ways, for example, as 81812025 + 1218987396 = 9045^2 + 34914^2 .

It is not a de Polignac number, because 1300799421 - 29 = 1300798909 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 (1300799411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 401235 + ... + 404463.

It is an arithmetic number, because the mean of its divisors is an integer number (82951245).

Almost surely, 21300799421 is an apocalyptic number.

It is an amenable number.

1300799421 is a deficient number, since it is larger than the sum of its proper divisors (690030459).

1300799421 is a wasteful number, since it uses less digits than its factorization.

1300799421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5885 (or 5882 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1300799421 is about 36066.5970255027. The cubic root of 1300799421 is about 1091.6165506534.

The spelling of 1300799421 in words is "one billion, three hundred million, seven hundred ninety-nine thousand, four hundred twenty-one".

Divisors: 1 3 9 17 51 153 2633 3229 7899 9687 23697 29061 44761 54893 134283 164679 402849 494037 8501957 25505871 76517613 144533269 433599807 1300799421