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4385242 = 22192621
BaseRepresentation
bin10000101110100111011010
322020210102101
4100232213122
52110311432
6233554014
752162651
oct20564732
98223371
104385242
112525774
12157590a
13ba7024
14822198
155b94e7
hex42e9da

4385242 has 4 divisors (see below), whose sum is σ = 6577866. Its totient is φ = 2192620.

The previous prime is 4385209. The next prime is 4385243. The reversal of 4385242 is 2425834.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2425834 = 21212917.

It can be written as a sum of positive squares in only one way, i.e., 4322241 + 63001 = 2079^2 + 251^2 .

It is a d-powerful number, because it can be written as 43 + 310 + 82 + 54 + 217 + 43 + 222 .

It is a pancake number, because a pancake can be divided into 4385242 parts by 2961 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 4385242.

It is not an unprimeable number, because it can be changed into a prime (4385243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096309 + ... + 1096312.

Almost surely, 24385242 is an apocalyptic number.

4385242 is a deficient number, since it is larger than the sum of its proper divisors (2192624).

4385242 is a wasteful number, since it uses less digits than its factorization.

4385242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192623.

The product of its digits is 7680, while the sum is 28.

The square root of 4385242 is about 2094.0969414046. The cubic root of 4385242 is about 163.6808437069.

The spelling of 4385242 in words is "four million, three hundred eighty-five thousand, two hundred forty-two".

Divisors: 1 2 2192621 4385242