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1230378 = 23205063
BaseRepresentation
bin100101100011000101010
32022111202120
410230120222
5303333003
642212110
713313052
oct4543052
92274676
101230378
11770446
124b4036
13341046
14240562
15194853
hex12c62a

1230378 has 8 divisors (see below), whose sum is σ = 2460768. Its totient is φ = 410124.

The previous prime is 1230377. The next prime is 1230379. The reversal of 1230378 is 8730321.

It is an interprime number because it is at equal distance from previous prime (1230377) and next prime (1230379).

It is a sphenic number, since it is the product of 3 distinct primes.

1230378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1230371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102526 + ... + 102537.

It is an arithmetic number, because the mean of its divisors is an integer number (307596).

21230378 is an apocalyptic number.

1230378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1230378 is a wasteful number, since it uses less digits than its factorization.

1230378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205068.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1230378 is about 1109.2240531110. The cubic root of 1230378 is about 107.1551015848.

Adding to 1230378 its reverse (8730321), we get a palindrome (9960699).

The spelling of 1230378 in words is "one million, two hundred thirty thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 205063 410126 615189 1230378