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442304030 = 25723274723
BaseRepresentation
bin11010010111010…
…000011000011110
31010211021101001202
4122113100120132
51401212212110
6111520035502
713650344060
oct3227203036
91124241052
10442304030
1120773a623
12104162b92
1370833a7c
1442a57730
1528c6d0a5
hex1a5d061e

442304030 has 32 divisors (see below), whose sum is σ = 949446144. Its totient is φ = 145053216.

The previous prime is 442304029. The next prime is 442304033. The reversal of 442304030 is 30403244.

Adding to 442304030 its reverse (30403244), we get a palindrome (472707274).

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 442303993 and 442304011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442304033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135752 + ... + 138971.

It is an arithmetic number, because the mean of its divisors is an integer number (29670192).

Almost surely, 2442304030 is an apocalyptic number.

442304030 is an abundant number, since it is smaller than the sum of its proper divisors (507142114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442304030 is a wasteful number, since it uses less digits than its factorization.

442304030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274760.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 442304030 is about 21031.0254148484. The cubic root of 442304030 is about 761.9157750039.

The spelling of 442304030 in words is "four hundred forty-two million, three hundred four thousand, thirty".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 805 1610 274723 549446 1373615 1923061 2747230 3846122 6318629 9615305 12637258 19230610 31593145 44230403 63186290 88460806 221152015 442304030