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4021024 = 25729619
BaseRepresentation
bin1111010101101100100000
321120021210211
433111230200
52012133044
6222103504
746115050
oct17255440
97507724
104021024
1122a7067
12141ab94
13aaa307
14769560
15546634
hex3d5b20

4021024 has 48 divisors (see below), whose sum is σ = 9374400. Its totient is φ = 1661184.

The previous prime is 4021019. The next prime is 4021033. The reversal of 4021024 is 4201204.

4021024 = T322 + T323 + ... + T385.

4021024 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 4020995 and 4021013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6187 + ... + 6805.

It is an arithmetic number, because the mean of its divisors is an integer number (195300).

Almost surely, 24021024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4687200).

4021024 is an abundant number, since it is smaller than the sum of its proper divisors (5353376).

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

4021024 is a wasteful number, since it uses less digits than its factorization.

4021024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 4021024 is about 2005.2491117066. The cubic root of 4021024 is about 159.0177320256.

Adding to 4021024 its reverse (4201204), we get a palindrome (8222228).

The spelling of 4021024 in words is "four million, twenty-one thousand, twenty-four".

Divisors: 1 2 4 7 8 14 16 28 29 32 56 58 112 116 203 224 232 406 464 619 812 928 1238 1624 2476 3248 4333 4952 6496 8666 9904 17332 17951 19808 34664 35902 69328 71804 125657 138656 143608 251314 287216 502628 574432 1005256 2010512 4021024