Search a number
-
+
2490720 = 25355189
BaseRepresentation
bin1001100000000101100000
311200112121220
421200011200
51114200340
6125215040
730112401
oct11400540
94615556
102490720
111451351
12a01480
136928cb
1448b9a8
15342ed0
hex260160

2490720 has 48 divisors (see below), whose sum is σ = 7847280. Its totient is φ = 664064.

The previous prime is 2490713. The next prime is 2490727. The reversal of 2490720 is 270942.

It is an interprime number because it is at equal distance from previous prime (2490713) and next prime (2490727).

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

It is a super-2 number, since 2×24907202 = 12407372236800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 217 + 49 + 9 + 0 + 73 + 221 + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2115 + ... + 3074.

It is an arithmetic number, because the mean of its divisors is an integer number (163485).

22490720 is an apocalyptic number.

2490720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2490720 is an abundant number, since it is smaller than the sum of its proper divisors (5356560).

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

2490720 is a wasteful number, since it uses less digits than its factorization.

2490720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5207 (or 5199 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2490720 is about 1578.2015080464. The cubic root of 2490720 is about 135.5527406425.

The spelling of 2490720 in words is "two million, four hundred ninety thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 5189 10378 15567 20756 25945 31134 41512 51890 62268 77835 83024 103780 124536 155670 166048 207560 249072 311340 415120 498144 622680 830240 1245360 2490720