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40303230 = 23511122131
BaseRepresentation
bin1001100110111…
…1101001111110
32210211121122020
42121233221332
540304200410
63555501010
7666400062
oct231575176
983747566
1040303230
1120828460
12115b7766
138471886
1454d1aa2
153811a70
hex266fa7e

40303230 has 32 divisors (see below), whose sum is σ = 105522048. Its totient is φ = 9770400.

The previous prime is 40303229. The next prime is 40303231. The reversal of 40303230 is 3230304.

It is an interprime number because it is at equal distance from previous prime (40303229) and next prime (40303231).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40303231) 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 15 ways as a sum of consecutive naturals, for example, 60736 + ... + 61395.

It is an arithmetic number, because the mean of its divisors is an integer number (3297564).

Almost surely, 240303230 is an apocalyptic number.

40303230 is an abundant number, since it is smaller than the sum of its proper divisors (65218818).

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

40303230 is a wasteful number, since it uses less digits than its factorization.

40303230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122152.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 40303230 is about 6348.4824958410. The cubic root of 40303230 is about 342.8572080853.

Adding to 40303230 its reverse (3230304), we get a palindrome (43533534).

It can be divided in two parts, 4030 and 3230, that added together give a triangular number (7260 = T120).

The spelling of 40303230 in words is "forty million, three hundred three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 122131 244262 366393 610655 732786 1221310 1343441 1831965 2686882 3663930 4030323 6717205 8060646 13434410 20151615 40303230