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44513420 = 22571092917
BaseRepresentation
bin1010100111001…
…1100010001100
310002202111221012
42221303202030
542343412140
64230024352
71050233510
oct251634214
9102674835
1044513420
1123143656
1212aa80b8
1392b7003
145caa140
153d94265
hex2a7388c

44513420 has 48 divisors (see below), whose sum is σ = 107849280. Its totient is φ = 15116544.

The previous prime is 44513401. The next prime is 44513431. The reversal of 44513420 is 2431544.

44513420 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×445134204 (a number of 32 digits) contains 4444 as substring.

44513420 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13802 + ... + 16718.

It is an arithmetic number, because the mean of its divisors is an integer number (2246860).

Almost surely, 244513420 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 44513420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53924640).

44513420 is an abundant number, since it is smaller than the sum of its proper divisors (63335860).

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

44513420 is a wasteful number, since it uses less digits than its factorization.

44513420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3042 (or 3040 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 44513420 is about 6671.8378277653. The cubic root of 44513420 is about 354.4026720105.

Adding to 44513420 its reverse (2431544), we get a palindrome (46944964).

The spelling of 44513420 in words is "forty-four million, five hundred thirteen thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 109 140 218 436 545 763 1090 1526 2180 2917 3052 3815 5834 7630 11668 14585 15260 20419 29170 40838 58340 81676 102095 204190 317953 408380 635906 1271812 1589765 2225671 3179530 4451342 6359060 8902684 11128355 22256710 44513420