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42340432 = 243721933
BaseRepresentation
bin1010000110000…
…1000001010000
32221200010011011
42201201001100
541314343212
64111300304
71022613331
oct241410120
987603134
1042340432
1121999aa2
121221a694
138a05c14
1458a2288
153ab54a7
hex2861050

42340432 has 30 divisors (see below), whose sum is σ = 84355278. Its totient is φ = 20587392.

The previous prime is 42340427. The next prime is 42340433. The reversal of 42340432 is 23404324.

It can be written as a sum of positive squares in 3 ways, for example, as 27625536 + 14714896 = 5256^2 + 3836^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42340433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20938 + ... + 22870.

Almost surely, 242340432 is an apocalyptic number.

It is an amenable number.

42340432 is a deficient number, since it is larger than the sum of its proper divisors (42014846).

42340432 is a wasteful number, since it uses less digits than its factorization.

42340432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015 (or 1972 counting only the distinct ones).

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

The square root of 42340432 is about 6506.9525893463. The cubic root of 42340432 is about 348.5393055974.

Adding to 42340432 its reverse (23404324), we get a palindrome (65744756).

The spelling of 42340432 in words is "forty-two million, three hundred forty thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 37 74 148 296 592 1369 1933 2738 3866 5476 7732 10952 15464 21904 30928 71521 143042 286084 572168 1144336 2646277 5292554 10585108 21170216 42340432