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63421142 = 247674693
BaseRepresentation
bin1111000111101…
…1101011010110
311102100010110012
43301323223112
5112213434032
610143200222
71400033201
oct361735326
9142303405
1063421142
1132888274
12192a6072
13101a7205
1485cc938
15587b6b2
hex3c7bad6

63421142 has 8 divisors (see below), whose sum is σ = 97155936. Its totient is φ = 31035832.

The previous prime is 63421139. The next prime is 63421201. The reversal of 63421142 is 24112436.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 337253 + ... + 337440.

It is an arithmetic number, because the mean of its divisors is an integer number (12144492).

Almost surely, 263421142 is an apocalyptic number.

63421142 is a deficient number, since it is larger than the sum of its proper divisors (33734794).

63421142 is a wasteful number, since it uses less digits than its factorization.

63421142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674742.

The product of its digits is 1152, while the sum is 23.

The square root of 63421142 is about 7963.7391971360. The cubic root of 63421142 is about 398.7903916395.

Adding to 63421142 its reverse (24112436), we get a palindrome (87533578).

The spelling of 63421142 in words is "sixty-three million, four hundred twenty-one thousand, one hundred forty-two".

Divisors: 1 2 47 94 674693 1349386 31710571 63421142