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2530380 = 2235181233
BaseRepresentation
bin1001101001110001001100
311202120000210
421221301030
51121433010
6130122420
730336126
oct11516114
94676023
102530380
111479126
12a20410
136a7988
1449c216
1534eb20
hex269c4c

2530380 has 48 divisors (see below), whose sum is σ = 7154784. Its totient is φ = 668160.

The previous prime is 2530373. The next prime is 2530403. The reversal of 2530380 is 830352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10744 + ... + 10976.

It is an arithmetic number, because the mean of its divisors is an integer number (149058).

22530380 is an apocalyptic number.

2530380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2530380 is an abundant number, since it is smaller than the sum of its proper divisors (4624404).

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

2530380 is a wasteful number, since it uses less digits than its factorization.

2530380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2530380 is about 1590.7168195502. The cubic root of 2530380 is about 136.2684288963.

The spelling of 2530380 in words is "two million, five hundred thirty thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 181 233 362 466 543 699 724 905 932 1086 1165 1398 1810 2172 2330 2715 2796 3495 3620 4660 5430 6990 10860 13980 42173 84346 126519 168692 210865 253038 421730 506076 632595 843460 1265190 2530380