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2530420 = 225196659
BaseRepresentation
bin1001101001110001110100
311202120002021
421221301310
51121433140
6130122524
730336214
oct11516164
94676067
102530420
111479162
12a20444
136a79b9
1449c244
1534eb4a
hex269c74

2530420 has 24 divisors (see below), whose sum is σ = 5594400. Its totient is φ = 958752.

The previous prime is 2530403. The next prime is 2530427. The reversal of 2530420 is 240352.

2530420 = T493 + T494 + ... + T512.

2530420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2530394 and 2530403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530427) 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 7 ways as a sum of consecutive naturals, for example, 2950 + ... + 3709.

It is an arithmetic number, because the mean of its divisors is an integer number (233100).

22530420 is an apocalyptic number.

2530420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2530420 is an abundant number, since it is smaller than the sum of its proper divisors (3063980).

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

2530420 is a wasteful number, since it uses less digits than its factorization.

2530420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6687 (or 6685 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 2530420 is about 1590.7293924486. The cubic root of 2530420 is about 136.2691469318.

Adding to 2530420 its reverse (240352), we get a palindrome (2770772).

The spelling of 2530420 in words is "two million, five hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 6659 13318 26636 33295 66590 126521 133180 253042 506084 632605 1265210 2530420