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1307328031 = 8919517529
BaseRepresentation
bin100110111101100…
…0011111000011111
310101002222010220201
41031323003320133
510134133444111
6333420324331
744253050662
oct11573037037
93332863821
101307328031
11610a52999
123059a36a7
1317ab025a9
14c58ab6d9
1579b8b6c1
hex4dec3e1f

1307328031 has 8 divisors (see below), whose sum is σ = 1322870400. Its totient is φ = 1291804800.

The previous prime is 1307328023. The next prime is 1307328059. The reversal of 1307328031 is 1308237031.

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 1307328031 - 23 = 1307328023 is a prime.

It is a super-2 number, since 2×13073280312 = 3418213161276673922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307328131) 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 7 ways as a sum of consecutive naturals, for example, 169875 + ... + 177403.

It is an arithmetic number, because the mean of its divisors is an integer number (165358800).

Almost surely, 21307328031 is an apocalyptic number.

1307328031 is a deficient number, since it is larger than the sum of its proper divisors (15542369).

1307328031 is an equidigital number, since it uses as much as digits as its factorization.

1307328031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9569.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1307328031 is about 36156.9914539360. The cubic root of 1307328031 is about 1093.4397497570.

The spelling of 1307328031 in words is "one billion, three hundred seven million, three hundred twenty-eight thousand, thirty-one".

Divisors: 1 89 1951 7529 173639 670081 14689079 1307328031