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20079444 = 22371131701
BaseRepresentation
bin100110010011…
…0001101010100
31101210010211010
41030212031110
520120020234
61554212220
7332446440
oct114461524
941703733
1020079444
1110374a90
126884070
134210638
142949820
151b696e9
hex1326354

20079444 has 96 divisors (see below), whose sum is σ = 60383232. Its totient is φ = 5040000.

The previous prime is 20079427. The next prime is 20079457. The reversal of 20079444 is 44497002.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 28294 + ... + 28994.

It is an arithmetic number, because the mean of its divisors is an integer number (628992).

Almost surely, 220079444 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 20079444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30191616).

20079444 is an abundant number, since it is smaller than the sum of its proper divisors (40303788).

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

20079444 is a wasteful number, since it uses less digits than its factorization.

20079444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 20079444 is about 4481.0092613160. The cubic root of 20079444 is about 271.8006938166.

The spelling of 20079444 in words is "twenty million, seventy-nine thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 31 33 42 44 62 66 77 84 93 124 132 154 186 217 231 308 341 372 434 462 651 682 701 868 924 1023 1302 1364 1402 2046 2103 2387 2604 2804 4092 4206 4774 4907 7161 7711 8412 9548 9814 14322 14721 15422 19628 21731 23133 28644 29442 30844 43462 46266 53977 58884 65193 86924 92532 107954 130386 152117 161931 215908 239041 260772 304234 323862 456351 478082 608468 647724 717123 912702 956164 1434246 1673287 1825404 2868492 3346574 5019861 6693148 10039722 20079444