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381052 = 22731439
BaseRepresentation
bin1011101000001111100
3201100201001
41131001330
544143202
612100044
73144640
oct1350174
9640631
10381052
11240321
12164624
13104599
149cc20
1577d87
hex5d07c

381052 has 24 divisors (see below), whose sum is σ = 788480. Its totient is φ = 157680.

The previous prime is 381047. The next prime is 381061. The reversal of 381052 is 250183.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 649 + ... + 1087.

2381052 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 381052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394240).

381052 is an abundant number, since it is smaller than the sum of its proper divisors (407428).

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

381052 is a wasteful number, since it uses less digits than its factorization.

381052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 381052 is about 617.2940952253. The cubic root of 381052 is about 72.4983432043.

The spelling of 381052 in words is "three hundred eighty-one thousand, fifty-two".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 439 868 878 1756 3073 6146 12292 13609 27218 54436 95263 190526 381052