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2534528780 = 22571392937
BaseRepresentation
bin1001011100010001…
…1101011100001100
320112122011101212022
42113010131130030
520142314410110
61055255425312
7116544065510
oct22704353414
96478141768
102534528780
111090747a93
125a8985238
1331512b894
141a087c140
15ec79b755
hex9711d70c

2534528780 has 72 divisors (see below), whose sum is σ = 6133484448. Its totient is φ = 861808896.

The previous prime is 2534528779. The next prime is 2534528813. The reversal of 2534528780 is 878254352.

It is a super-2 number, since 2×25345287802 = 12847672273296576800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2704472 + ... + 2705408.

It is an arithmetic number, because the mean of its divisors is an integer number (85187284).

Almost surely, 22534528780 is an apocalyptic number.

2534528780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2534528780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3066742224).

2534528780 is an abundant number, since it is smaller than the sum of its proper divisors (3598955668).

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

2534528780 is a wasteful number, since it uses less digits than its factorization.

2534528780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 44.

The square root of 2534528780 is about 50344.1037262558. The cubic root of 2534528780 is about 1363.4286291206.

The spelling of 2534528780 in words is "two billion, five hundred thirty-four million, five hundred twenty-eight thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 139 140 278 556 695 937 973 1390 1874 1946 2780 3748 3892 4685 4865 6559 9370 9730 13118 18740 19321 19460 26236 32795 38642 65590 77284 96605 130243 131180 135247 193210 260486 270494 386420 520972 540988 651215 676235 911701 1302430 1352470 1823402 2604860 2704940 3646804 4558505 9117010 18103777 18234020 36207554 72415108 90518885 126726439 181037770 253452878 362075540 506905756 633632195 1267264390 2534528780