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2530782580 = 225592144731
BaseRepresentation
bin1001011011011000…
…1010110101110100
320112101010002001011
42112312022311310
520140340020310
61055043242004
7116500203604
oct22666126564
96471102034
102530782580
111089619457
125a7679304
133144196b1
141a0184c04
15ec2ab78a
hex96d8ad74

2530782580 has 24 divisors (see below), whose sum is σ = 5404724640. Its totient is φ = 995154720.

The previous prime is 2530782563. The next prime is 2530782589. The reversal of 2530782580 is 852870352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530782589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071186 + ... + 1073545.

It is an arithmetic number, because the mean of its divisors is an integer number (225196860).

Almost surely, 22530782580 is an apocalyptic number.

2530782580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2530782580 is an abundant number, since it is smaller than the sum of its proper divisors (2873942060).

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

2530782580 is a wasteful number, since it uses less digits than its factorization.

2530782580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144799 (or 2144797 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 2530782580 is about 50306.8840219706. The cubic root of 2530782580 is about 1362.7565522000.

The spelling of 2530782580 in words is "two billion, five hundred thirty million, seven hundred eighty-two thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 59 118 236 295 590 1180 2144731 4289462 8578924 10723655 21447310 42894620 126539129 253078258 506156516 632695645 1265391290 2530782580