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232340440 = 23541141671
BaseRepresentation
bin11011101100100…
…11101111011000
3121012012010011111
431312103233120
5433434343230
635015510104
75520601243
oct1566235730
9535163144
10232340440
1110a1718a2
1265988334
133919b667
1422c0025a
15155e692a
hexdd93bd8

232340440 has 32 divisors (see below), whose sum is σ = 535520160. Its totient is φ = 90668800.

The previous prime is 232340429. The next prime is 232340467. The reversal of 232340440 is 44043232.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 69196 + ... + 72475.

It is an arithmetic number, because the mean of its divisors is an integer number (16735005).

Almost surely, 2232340440 is an apocalyptic number.

232340440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232340440 is an abundant number, since it is smaller than the sum of its proper divisors (303179720).

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

232340440 is a wasteful number, since it uses less digits than its factorization.

232340440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141723 (or 141719 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 232340440 is about 15242.7176054666. The cubic root of 232340440 is about 614.7637755820.

Adding to 232340440 its reverse (44043232), we get a palindrome (276383672).

The spelling of 232340440 in words is "two hundred thirty-two million, three hundred forty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 41 82 164 205 328 410 820 1640 141671 283342 566684 708355 1133368 1416710 2833420 5666840 5808511 11617022 23234044 29042555 46468088 58085110 116170220 232340440