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1379928 = 233115227
BaseRepresentation
bin101010000111001011000
32121002220110
411100321120
5323124203
645324320
714505054
oct5207130
92532813
101379928
11862840
125666a0
13394134
1427cc64
151c3d03
hex150e58

1379928 has 32 divisors (see below), whose sum is σ = 3764160. Its totient is φ = 418080.

The previous prime is 1379923. The next prime is 1379929. The reversal of 1379928 is 8299731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2350 + ... + 2877.

It is an arithmetic number, because the mean of its divisors is an integer number (117630).

21379928 is an apocalyptic number.

It is an amenable number.

1379928 is an abundant number, since it is smaller than the sum of its proper divisors (2384232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1379928 is a wasteful number, since it uses less digits than its factorization.

1379928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5247 (or 5243 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 1379928 is about 1174.7033668122. The cubic root of 1379928 is about 111.3316918814.

The spelling of 1379928 in words is "one million, three hundred seventy-nine thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 5227 10454 15681 20908 31362 41816 57497 62724 114994 125448 172491 229988 344982 459976 689964 1379928