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4144028 = 227221143
BaseRepresentation
bin1111110011101110011100
321210112112112
433303232130
52030102103
6224453152
750136500
oct17635634
97715475
104144028
112380519
12147a1b8
13b212b5
1479c300
1556ccd8
hex3f3b9c

4144028 has 18 divisors (see below), whose sum is σ = 8436456. Its totient is φ = 1775928.

The previous prime is 4144001. The next prime is 4144031. The reversal of 4144028 is 8204414.

It is a junction number, because it is equal to n+sod(n) for n = 4143994 and 4144012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10376 + ... + 10767.

It is an arithmetic number, because the mean of its divisors is an integer number (468692).

Almost surely, 24144028 is an apocalyptic number.

It is an amenable number.

4144028 is an abundant number, since it is smaller than the sum of its proper divisors (4292428).

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

4144028 is a wasteful number, since it uses less digits than its factorization.

4144028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21161 (or 21152 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 4144028 is about 2035.6885812914. The cubic root of 4144028 is about 160.6229361269.

The spelling of 4144028 in words is "four million, one hundred forty-four thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 21143 42286 84572 148001 296002 592004 1036007 2072014 4144028