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4742643 = 31792993
BaseRepresentation
bin10010000101110111110011
322220221200110
4102011313303
52203231033
6245352403
755211643
oct22056763
98827613
104742643
11274a244
121708703
13ca08c9
148b6523
1563a363
hex485df3

4742643 has 8 divisors (see below), whose sum is σ = 6695568. Its totient is φ = 2975744.

The previous prime is 4742641. The next prime is 4742651. The reversal of 4742643 is 3462474.

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

It is a cyclic number.

It is not a de Polignac number, because 4742643 - 21 = 4742641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4742643.

It is not an unprimeable number, because it can be changed into a prime (4742641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46446 + ... + 46547.

It is an arithmetic number, because the mean of its divisors is an integer number (836946).

Almost surely, 24742643 is an apocalyptic number.

4742643 is a deficient number, since it is larger than the sum of its proper divisors (1952925).

4742643 is a wasteful number, since it uses less digits than its factorization.

4742643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93013.

The product of its digits is 16128, while the sum is 30.

The square root of 4742643 is about 2177.7610061712. The cubic root of 4742643 is about 168.0119393442.

The spelling of 4742643 in words is "four million, seven hundred forty-two thousand, six hundred forty-three".

Divisors: 1 3 17 51 92993 278979 1580881 4742643