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1369928 = 237171439
BaseRepresentation
bin101001110011101001000
32120121012002
411032131020
5322314203
645210132
714433650
oct5163510
92517162
101369928
1185627a
12560948
1338c711
14279360
151c0d88
hex14e748

1369928 has 32 divisors (see below), whose sum is σ = 3110400. Its totient is φ = 552192.

The previous prime is 1369897. The next prime is 1369943. The reversal of 1369928 is 8299631.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1369891 and 1369900.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233 + ... + 1671.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

21369928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1369928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555200).

1369928 is an abundant number, since it is smaller than the sum of its proper divisors (1740472).

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

1369928 is a wasteful number, since it uses less digits than its factorization.

1369928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469 (or 1465 counting only the distinct ones).

The product of its digits is 23328, while the sum is 38.

The square root of 1369928 is about 1170.4392337922. The cubic root of 1369928 is about 111.0621084659.

The spelling of 1369928 in words is "one million, three hundred sixty-nine thousand, nine hundred twenty-eight".

Divisors: 1 2 4 7 8 14 17 28 34 56 68 119 136 238 476 952 1439 2878 5756 10073 11512 20146 24463 40292 48926 80584 97852 171241 195704 342482 684964 1369928