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63442132 = 22131220041
BaseRepresentation
bin1111001000000…
…0110011010100
311102101012020121
43302000303110
5112220122012
610143441324
71400151325
oct362006324
9142335217
1063442132
11328a2016
12192b6244
13101b3930
1485d644c
155882a07
hex3c80cd4

63442132 has 12 divisors (see below), whose sum is σ = 119564116. Its totient is φ = 29280960.

The previous prime is 63442123. The next prime is 63442133. The reversal of 63442132 is 23124436.

It can be written as a sum of positive squares in 2 ways, for example, as 42042256 + 21399876 = 6484^2 + 4626^2 .

It is a super-2 number, since 2×634421322 = 8049808225410848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63442097 and 63442106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63442133) 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 3 ways as a sum of consecutive naturals, for example, 609969 + ... + 610072.

Almost surely, 263442132 is an apocalyptic number.

It is an amenable number.

63442132 is a deficient number, since it is larger than the sum of its proper divisors (56121984).

63442132 is a wasteful number, since it uses less digits than its factorization.

63442132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220058 (or 1220056 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 63442132 is about 7965.0569363941. The cubic root of 63442132 is about 398.8343816339.

Adding to 63442132 its reverse (23124436), we get a palindrome (86566568).

The spelling of 63442132 in words is "sixty-three million, four hundred forty-two thousand, one hundred thirty-two".

Divisors: 1 2 4 13 26 52 1220041 2440082 4880164 15860533 31721066 63442132