Search a number
-
+
2060840 = 23551521
BaseRepresentation
bin111110111001000101000
310212200221102
413313020220
51011421330
6112100532
723342165
oct7671050
93780842
102060840
111188381
12834748
13572042
143b906c
152aa945
hex1f7228

2060840 has 16 divisors (see below), whose sum is σ = 4636980. Its totient is φ = 824320.

The previous prime is 2060803. The next prime is 2060843. The reversal of 2060840 is 480602.

It can be written as a sum of positive squares in 2 ways, for example, as 1653796 + 407044 = 1286^2 + 638^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2060843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25721 + ... + 25800.

22060840 is an apocalyptic number.

2060840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2060840 is an abundant number, since it is smaller than the sum of its proper divisors (2576140).

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

2060840 is a wasteful number, since it uses less digits than its factorization.

2060840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51532 (or 51528 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2060840 is about 1435.5626074818. The cubic root of 2060840 is about 127.2569250634.

The spelling of 2060840 in words is "two million, sixty thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 51521 103042 206084 257605 412168 515210 1030420 2060840