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44120028 = 22347137571
BaseRepresentation
bin1010100001001…
…1011111011100
310002000112022010
42220103133130
542243320103
64213351220
71044004551
oct250233734
9102015263
1044120028
11229a5037
1212938510
1391a9c34
145c06a28
153d17903
hex2a137dc

44120028 has 48 divisors (see below), whose sum is σ = 106089984. Its totient is φ = 14263680.

The previous prime is 44119987. The next prime is 44120029. The reversal of 44120028 is 82002144.

It is a junction number, because it is equal to n+sod(n) for n = 44119986 and 44120013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44120029) 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, 76983 + ... + 77553.

It is an arithmetic number, because the mean of its divisors is an integer number (2210208).

Almost surely, 244120028 is an apocalyptic number.

It is an amenable number.

44120028 is an abundant number, since it is smaller than the sum of its proper divisors (61969956).

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

44120028 is a wasteful number, since it uses less digits than its factorization.

44120028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 44120028 is about 6642.2908698731. The cubic root of 44120028 is about 353.3555577176.

The spelling of 44120028 in words is "forty-four million, one hundred twenty thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 47 94 137 141 188 274 282 411 548 564 571 822 1142 1644 1713 2284 3426 6439 6852 12878 19317 25756 26837 38634 53674 77268 78227 80511 107348 156454 161022 234681 312908 322044 469362 938724 3676669 7353338 11030007 14706676 22060014 44120028