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400001230 = 2540000123
BaseRepresentation
bin10111110101111…
…000100011001110
31000212200011112101
4113311320203032
51304400014410
6103405225314
712624645226
oct2765704316
91025604471
10400001230
11195876932
12b1b6223a
1364b42025
143b1a5086
15251b3d3a
hex17d788ce

400001230 has 8 divisors (see below), whose sum is σ = 720002232. Its totient is φ = 160000488.

The previous prime is 400001227. The next prime is 400001233. The reversal of 400001230 is 32100004.

400001230 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (400001227) and next prime (400001233).

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

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 40000123 = 400001230 / (4 + 0 + 0 + 0 + 0 + 1 + 2 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400001233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20000052 + ... + 20000071.

It is an arithmetic number, because the mean of its divisors is an integer number (90000279).

Almost surely, 2400001230 is an apocalyptic number.

400001230 is a deficient number, since it is larger than the sum of its proper divisors (320001002).

400001230 is a wasteful number, since it uses less digits than its factorization.

400001230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40000130.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 400001230 is about 20000.0307499764. The cubic root of 400001230 is about 736.8070549538.

Adding to 400001230 its reverse (32100004), we get a palindrome (432101234).

The spelling of 400001230 in words is "four hundred million, one thousand, two hundred thirty".

Divisors: 1 2 5 10 40000123 80000246 200000615 400001230