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232530240 = 2635432131
BaseRepresentation
bin11011101110000…
…10000101000000
3121012112202112010
431313002011000
5434011431430
635023532520
75522321505
oct1567020500
9535482463
10232530240
1110a291458
1265a5a140
1339236b77
1422c4d4ac
1515632cb0
hexddc2140

232530240 has 168 divisors, whose sum is σ = 761622048. Its totient is φ = 60103680.

The previous prime is 232530169. The next prime is 232530241. The reversal of 232530240 is 42035232.

It is a super-4 number, since 4×2325302404 (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232530241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1774975 + ... + 1775105.

Almost surely, 2232530240 is an apocalyptic number.

232530240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232530240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380811024).

232530240 is an abundant number, since it is smaller than the sum of its proper divisors (529091808).

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

232530240 is a wasteful number, since it uses less digits than its factorization.

232530240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 232530240 is about 15248.9422583994. The cubic root of 232530240 is about 614.9311311606.

Adding to 232530240 its reverse (42035232), we get a palindrome (274565472).

The spelling of 232530240 in words is "two hundred thirty-two million, five hundred thirty thousand, two hundred forty".