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378532 = 227111229
BaseRepresentation
bin1011100011010100100
3201020020201
41130122210
544103112
612040244
73134410
oct1343244
9636221
10378532
11239440
12163084
131033ab
149bd40
1577257
hex5c6a4

378532 has 24 divisors (see below), whose sum is σ = 826560. Its totient is φ = 147360.

The previous prime is 378523. The next prime is 378533. The reversal of 378532 is 235873.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 378532.

It is not an unprimeable number, because it can be changed into a prime (378533) by changing a digit.

378532 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 7 ways as a sum of consecutive naturals, for example, 307 + ... + 922.

It is an arithmetic number, because the mean of its divisors is an integer number (34440).

2378532 is an apocalyptic number.

378532 is the 308-th decagonal number.

It is an amenable number.

378532 is an abundant number, since it is smaller than the sum of its proper divisors (448028).

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

378532 is a wasteful number, since it uses less digits than its factorization.

378532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251 (or 1249 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 378532 is about 615.2495428686. The cubic root of 378532 is about 72.3381725451.

The spelling of 378532 in words is "three hundred seventy-eight thousand, five hundred thirty-two".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 1229 2458 4916 8603 13519 17206 27038 34412 54076 94633 189266 378532