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1379838670 = 25799119891
BaseRepresentation
bin101001000111110…
…1010101011001110
310120011102001210221
41102033222223032
510311214314140
6344530421554
746123302160
oct12217525316
93504361727
101379838670
11648979241
123261318ba
1318cb3cab2
14d1384930
158121114a
hex523eaace

1379838670 has 32 divisors (see below), whose sum is σ = 2841532416. Its totient is φ = 472586400.

The previous prime is 1379838631. The next prime is 1379838689. The reversal of 1379838670 is 768389731.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 59425 + ... + 79315.

It is an arithmetic number, because the mean of its divisors is an integer number (88797888).

Almost surely, 21379838670 is an apocalyptic number.

1379838670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1379838670 is an abundant number, since it is smaller than the sum of its proper divisors (1461693746).

1379838670 is a wasteful number, since it uses less digits than its factorization.

1379838670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20896.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 1379838670 is about 37146.1797497401. The cubic root of 1379838670 is about 1113.2928946750.

The spelling of 1379838670 in words is "one billion, three hundred seventy-nine million, eight hundred thirty-eight thousand, six hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 991 1982 4955 6937 9910 13874 19891 34685 39782 69370 99455 139237 198910 278474 696185 1392370 19711981 39423962 98559905 137983867 197119810 275967734 689919335 1379838670