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1395930 = 235193179
BaseRepresentation
bin101010100110011011010
32121220212010
411110303122
5324132210
645530350
714602524
oct5246332
92556763
101395930
11873868
125739b6
1339b4c3
14284a14
151c8920
hex154cda

1395930 has 64 divisors (see below), whose sum is σ = 3686400. Its totient is φ = 336960.

The previous prime is 1395923. The next prime is 1395943. The reversal of 1395930 is 395931.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17631 + ... + 17709.

It is an arithmetic number, because the mean of its divisors is an integer number (57600).

21395930 is an apocalyptic number.

1395930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1395930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1843200).

1395930 is an abundant number, since it is smaller than the sum of its proper divisors (2290470).

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

1395930 is a wasteful number, since it uses less digits than its factorization.

1395930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139.

The product of its (nonzero) digits is 3645, while the sum is 30.

The square root of 1395930 is about 1181.4948159006. The cubic root of 1395930 is about 111.7603827017.

Subtracting from 1395930 its reverse (395931), we obtain a palindrome (999999).

The spelling of 1395930 in words is "one million, three hundred ninety-five thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 31 38 57 62 79 93 95 114 155 158 186 190 237 285 310 395 465 474 570 589 790 930 1178 1185 1501 1767 2370 2449 2945 3002 3534 4503 4898 5890 7347 7505 8835 9006 12245 14694 15010 17670 22515 24490 36735 45030 46531 73470 93062 139593 232655 279186 465310 697965 1395930