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1330780927 = 71731973719
BaseRepresentation
bin100111101010010…
…0001101011111111
310102202002200020111
41033110201223333
510211134442202
6340015130451
744656310530
oct11724415377
93382080214
101330780927
11623211453
12311813a27
13182924548
14c8a54687
157bc706d7
hex4f521aff

1330780927 has 32 divisors (see below), whose sum is σ = 1679892480. Its totient is φ = 1027952640.

The previous prime is 1330780907. The next prime is 1330780951. The reversal of 1330780927 is 7290870331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1330780927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1330780927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330780907) 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 31 ways as a sum of consecutive naturals, for example, 355974 + ... + 359692.

It is an arithmetic number, because the mean of its divisors is an integer number (52496640).

Almost surely, 21330780927 is an apocalyptic number.

1330780927 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1330780927 is a deficient number, since it is larger than the sum of its proper divisors (349111553).

1330780927 is a wasteful number, since it uses less digits than its factorization.

1330780927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 1330780927 is about 36479.8701615014. The cubic root of 1330780927 is about 1099.9396459999.

The spelling of 1330780927 in words is "one billion, three hundred thirty million, seven hundred eighty thousand, nine hundred twenty-seven".

Divisors: 1 7 17 31 97 119 217 527 679 1649 3007 3689 3719 11543 21049 26033 51119 63223 115289 357833 360743 442561 807023 1959913 2525201 6132631 11183033 13719391 42928417 78281231 190111561 1330780927