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44120428 = 22113741661
BaseRepresentation
bin1010100001001…
…1100101101100
310002000112211221
42220103211230
542243323203
64213353124
71044005662
oct250234554
9102015757
1044120428
11229a5370
12129387a4
1391aa181
145c06c32
153d17abd
hex2a1396c

44120428 has 48 divisors (see below), whose sum is σ = 88750368. Its totient is φ = 19008000.

The previous prime is 44120369. The next prime is 44120429. The reversal of 44120428 is 82402144.

It is a super-2 number, since 2×441204282 = 3893224333806368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44120429) 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, 66418 + ... + 67078.

It is an arithmetic number, because the mean of its divisors is an integer number (1848966).

Almost surely, 244120428 is an apocalyptic number.

It is an amenable number.

44120428 is an abundant number, since it is smaller than the sum of its proper divisors (44629940).

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

44120428 is a wasteful number, since it uses less digits than its factorization.

44120428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 44120428 is about 6642.3209798985. The cubic root of 44120428 is about 353.3566255758.

The spelling of 44120428 in words is "forty-four million, one hundred twenty thousand, four hundred twenty-eight".

Divisors: 1 2 4 11 22 37 41 44 74 82 148 164 407 451 661 814 902 1322 1517 1628 1804 2644 3034 6068 7271 14542 16687 24457 27101 29084 33374 48914 54202 66748 97828 108404 269027 298111 538054 596222 1002737 1076108 1192444 2005474 4010948 11030107 22060214 44120428