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1489472 = 2617372
BaseRepresentation
bin101101011101001000000
32210200011122
411223221000
5340130342
651531412
715442325
oct5535100
92720148
101489472
11928076
125b9b68
13401c5a
142aab4c
151e64d2
hex16ba40

1489472 has 42 divisors (see below), whose sum is σ = 3216402. Its totient is φ = 681984.

The previous prime is 1489463. The next prime is 1489507. The reversal of 1489472 is 2749841.

It can be written as a sum of positive squares in 3 ways, for example, as 1048576 + 440896 = 1024^2 + 664^2 .

Its product of digits (16128) is a multiple of the sum of its prime divisors (56).

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, 40238 + ... + 40274.

It is an arithmetic number, because the mean of its divisors is an integer number (76581).

21489472 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 1489472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1608201).

1489472 is an abundant number, since it is smaller than the sum of its proper divisors (1726930).

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

1489472 is an equidigital number, since it uses as much as digits as its factorization.

1489472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 56 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 1489472 is about 1220.4392651828. The cubic root of 1489472 is about 114.2029829825.

It can be divided in two parts, 148 and 9472, that multiplied together give a square (1401856 = 11842).

The spelling of 1489472 in words is "one million, four hundred eighty-nine thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 17 32 34 37 64 68 74 136 148 272 296 544 592 629 1088 1184 1258 1369 2368 2516 2738 5032 5476 10064 10952 20128 21904 23273 40256 43808 46546 87616 93092 186184 372368 744736 1489472