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642314 = 21916903
BaseRepresentation
bin10011100110100001010
31012122002102
42130310022
5131023224
621433402
75313431
oct2346412
91178072
10642314
113a9642
1226b862
1319648a
1412a118
15ca4ae
hex9cd0a

642314 has 8 divisors (see below), whose sum is σ = 1014240. Its totient is φ = 304236.

The previous prime is 642281. The next prime is 642359. The reversal of 642314 is 413246.

It is a happy number.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 642314.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8414 + ... + 8489.

It is an arithmetic number, because the mean of its divisors is an integer number (126780).

2642314 is an apocalyptic number.

642314 is a deficient number, since it is larger than the sum of its proper divisors (371926).

642314 is a wasteful number, since it uses less digits than its factorization.

642314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16924.

The product of its digits is 576, while the sum is 20.

The square root of 642314 is about 801.4449450836. Note that the first 3 decimals coincide. The cubic root of 642314 is about 86.2811243828.

The spelling of 642314 in words is "six hundred forty-two thousand, three hundred fourteen".

Divisors: 1 2 19 38 16903 33806 321157 642314