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4021052 = 227143609
BaseRepresentation
bin1111010101101100111100
321120021211212
433111230330
52012133202
6222103552
746115120
oct17255474
97507755
104021052
1122a7092
12141abb8
13aaa329
14769580
15546652
hex3d5b3c

4021052 has 12 divisors (see below), whose sum is σ = 8042160. Its totient is φ = 1723296.

The previous prime is 4021051. The next prime is 4021079. The reversal of 4021052 is 2501204.

4021052 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71777 + ... + 71832.

It is an arithmetic number, because the mean of its divisors is an integer number (670180).

Almost surely, 24021052 is an apocalyptic number.

It is an amenable number.

4021052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4021052 is a wasteful number, since it uses less digits than its factorization.

4021052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143620 (or 143618 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 4021052 is about 2005.2560933706. The cubic root of 4021052 is about 159.0181011261.

Adding to 4021052 its reverse (2501204), we get a palindrome (6522256).

The spelling of 4021052 in words is "four million, twenty-one thousand, fifty-two".

Divisors: 1 2 4 7 14 28 143609 287218 574436 1005263 2010526 4021052