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1379292887 = 76724112203
BaseRepresentation
bin101001000110110…
…0101011011010111
310120010101100010202
41102031211123113
510311044333022
6344511011115
746115540030
oct12215453327
93503340122
101379292887
11648636185
12325b09a9b
1318c9ab54b
14d1281a87
1581154592
hex523656d7

1379292887 has 16 divisors (see below), whose sum is σ = 1606632192. Its totient is φ = 1159678080.

The previous prime is 1379292883. The next prime is 1379292907. The reversal of 1379292887 is 7882929731.

It is a cyclic number.

It is not a de Polignac number, because 1379292887 - 22 = 1379292883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379292881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106928 + ... + 119130.

It is an arithmetic number, because the mean of its divisors is an integer number (100414512).

Almost surely, 21379292887 is an apocalyptic number.

1379292887 is a deficient number, since it is larger than the sum of its proper divisors (227339305).

1379292887 is a wasteful number, since it uses less digits than its factorization.

1379292887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12518.

The product of its digits is 3048192, while the sum is 56.

The square root of 1379292887 is about 37138.8326014699. The cubic root of 1379292887 is about 1113.1460909268.

The spelling of 1379292887 in words is "one billion, three hundred seventy-nine million, two hundred ninety-two thousand, eight hundred eighty-seven".

Divisors: 1 7 67 241 469 1687 12203 16147 85421 113029 817601 2940923 5723207 20586461 197041841 1379292887