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2530388 = 22790371
BaseRepresentation
bin1001101001110001010100
311202120001002
421221301110
51121433023
6130122432
730336140
oct11516124
94676032
102530388
111479133
12a20418
136a7993
1449c220
1534eb28
hex269c54

2530388 has 12 divisors (see below), whose sum is σ = 5060832. Its totient is φ = 1084440.

The previous prime is 2530373. The next prime is 2530403. The reversal of 2530388 is 8830352.

It is an interprime number because it is at equal distance from previous prime (2530373) and next prime (2530403).

2530388 is an admirable number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2530388.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45158 + ... + 45213.

It is an arithmetic number, because the mean of its divisors is an integer number (421736).

22530388 is an apocalyptic number.

2530388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2530388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2530388 is a wasteful number, since it uses less digits than its factorization.

2530388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90382 (or 90380 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2530388 is about 1590.7193341379. The cubic root of 2530388 is about 136.2685725040.

The spelling of 2530388 in words is "two million, five hundred thirty thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 28 90371 180742 361484 632597 1265194 2530388