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2489472 = 27322161
BaseRepresentation
bin1001011111110010000000
311200110220200
421133302000
51114130342
6125205200
730105636
oct11376200
94613820
102489472
111450417
12a00800
1369217b
1448b356
1534294c
hex25fc80

2489472 has 48 divisors (see below), whose sum is σ = 7167030. Its totient is φ = 829440.

The previous prime is 2489453. The next prime is 2489477. The reversal of 2489472 is 2749842.

It can be written as a sum of positive squares in only one way, i.e., 2005056 + 484416 = 1416^2 + 696^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2489477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72 + ... + 2232.

22489472 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 2489472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3583515).

2489472 is an abundant number, since it is smaller than the sum of its proper divisors (4677558).

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

2489472 is a wasteful number, since it uses less digits than its factorization.

2489472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181 (or 2166 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2489472 is about 1577.8060717338. The cubic root of 2489472 is about 135.5300968443.

The spelling of 2489472 in words is "two million, four hundred eighty-nine thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 288 384 576 1152 2161 4322 6483 8644 12966 17288 19449 25932 34576 38898 51864 69152 77796 103728 138304 155592 207456 276608 311184 414912 622368 829824 1244736 2489472