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380982 = 23747193
BaseRepresentation
bin1011101000000110110
3201100121110
41131000312
544142412
612055450
73144510
oct1350066
9640543
10380982
11240268
12164586
13104544
149cbb0
1577d3c
hex5d036

380982 has 32 divisors (see below), whose sum is σ = 893952. Its totient is φ = 105984.

The previous prime is 380977. The next prime is 380983. The reversal of 380982 is 289083.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380983) by changing a digit.

380982 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1878 + ... + 2070.

It is an arithmetic number, because the mean of its divisors is an integer number (27936).

2380982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446976).

380982 is an abundant number, since it is smaller than the sum of its proper divisors (512970).

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

380982 is a wasteful number, since it uses less digits than its factorization.

380982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 380982 is about 617.2373935529. The cubic root of 380982 is about 72.4939035698.

The spelling of 380982 in words is "three hundred eighty thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 42 47 94 141 193 282 329 386 579 658 987 1158 1351 1974 2702 4053 8106 9071 18142 27213 54426 63497 126994 190491 380982