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2489772 = 223207481
BaseRepresentation
bin1001011111110110101100
311200111022210
421133312230
51114133042
6125210420
730106545
oct11376654
94614283
102489772
11145066a
12a00a10
1369234c
1448b4cc
15342a9c
hex25fdac

2489772 has 12 divisors (see below), whose sum is σ = 5809496. Its totient is φ = 829920.

The previous prime is 2489761. The next prime is 2489777. The reversal of 2489772 is 2779842.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×24897722 = 12397929223968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2489772.

It is not an unprimeable number, because it can be changed into a prime (2489777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103729 + ... + 103752.

22489772 is an apocalyptic number.

It is an amenable number.

2489772 is an abundant number, since it is smaller than the sum of its proper divisors (3319724).

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

2489772 is a wasteful number, since it uses less digits than its factorization.

2489772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207488 (or 207486 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 2489772 is about 1577.9011375875. The cubic root of 2489772 is about 135.5355407558.

The spelling of 2489772 in words is "two million, four hundred eighty-nine thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 207481 414962 622443 829924 1244886 2489772