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42403432 = 236418269
BaseRepresentation
bin1010000111000…
…0011001101000
32221210022120111
42201300121220
541323402212
64112504104
71023265111
oct241603150
987708514
1042403432
1121a32365
121224b034
138a287b6
1458bb208
153ac8ea7
hex2870668

42403432 has 16 divisors (see below), whose sum is σ = 79640100. Its totient is φ = 21166080.

The previous prime is 42403409. The next prime is 42403433. The reversal of 42403432 is 23430424.

It can be written as a sum of positive squares in 2 ways, for example, as 33246756 + 9156676 = 5766^2 + 3026^2 .

It is not an unprimeable number, because it can be changed into a prime (42403433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994 + ... + 9262.

Almost surely, 242403432 is an apocalyptic number.

It is an amenable number.

42403432 is a deficient number, since it is larger than the sum of its proper divisors (37236668).

42403432 is a wasteful number, since it uses less digits than its factorization.

42403432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8916 (or 8912 counting only the distinct ones).

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

The square root of 42403432 is about 6511.7917657124. The cubic root of 42403432 is about 348.7120883923.

Adding to 42403432 its reverse (23430424), we get a palindrome (65833856).

The spelling of 42403432 in words is "forty-two million, four hundred three thousand, four hundred thirty-two".

Divisors: 1 2 4 8 641 1282 2564 5128 8269 16538 33076 66152 5300429 10600858 21201716 42403432