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378506250 = 233552243
BaseRepresentation
bin10110100011111…
…000110000001010
3222101020002222000
4112203320300022
51233344200000
6101320411430
712244151523
oct2643706012
9871202860
10378506250
11184725391
12a6916b76
13605572c5
14383ab84a
152336a000
hex168f8c0a

378506250 has 96 divisors (see below), whose sum is σ = 1051807680. Its totient is φ = 100890000.

The previous prime is 378506213. The next prime is 378506251. The reversal of 378506250 is 52605873.

It is not an unprimeable number, because it can be changed into a prime (378506251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 167629 + ... + 169871.

It is an arithmetic number, because the mean of its divisors is an integer number (10956330).

Almost surely, 2378506250 is an apocalyptic number.

378506250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 378506250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525903840).

378506250 is an abundant number, since it is smaller than the sum of its proper divisors (673301430).

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

378506250 is an equidigital number, since it uses as much as digits as its factorization.

378506250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279 (or 2253 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 378506250 is about 19455.2370841375. The cubic root of 378506250 is about 723.3653221688.

It can be divided in two parts, 37850 and 6250, that added together give a square (44100 = 2102).

The spelling of 378506250 in words is "three hundred seventy-eight million, five hundred six thousand, two hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 90 125 135 150 225 250 270 375 450 625 675 750 1125 1250 1350 1875 2243 2250 3125 3375 3750 4486 5625 6250 6729 6750 9375 11215 11250 13458 16875 18750 20187 22430 28125 33645 33750 40374 56075 56250 60561 67290 84375 100935 112150 121122 168225 168750 201870 280375 302805 336450 504675 560750 605610 841125 1009350 1401875 1514025 1682250 2523375 2803750 3028050 4205625 5046750 7009375 7570125 8411250 12616875 14018750 15140250 21028125 25233750 37850625 42056250 63084375 75701250 126168750 189253125 378506250