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1381932 = 2232231669
BaseRepresentation
bin101010001011000101100
32121012122200
411101120230
5323210212
645341500
714513646
oct5213054
92535580
101381932
118642a2
12567890
13395016
1427d896
151c46dc
hex15162c

1381932 has 36 divisors (see below), whose sum is σ = 3647280. Its totient is φ = 440352.

The previous prime is 1381921. The next prime is 1381967. The reversal of 1381932 is 2391831.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1381896 and 1381905.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7 + ... + 1662.

21381932 is an apocalyptic number.

1381932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1381932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1823640).

1381932 is an abundant number, since it is smaller than the sum of its proper divisors (2265348).

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

1381932 is a wasteful number, since it uses less digits than its factorization.

1381932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702 (or 1697 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1381932 is about 1175.5560386472. The cubic root of 1381932 is about 111.3855596181.

The spelling of 1381932 in words is "one million, three hundred eighty-one thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 138 207 276 414 828 1669 3338 5007 6676 10014 15021 20028 30042 38387 60084 76774 115161 153548 230322 345483 460644 690966 1381932