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115282540 = 22529474229
BaseRepresentation
bin1101101111100…
…01001001101100
322000220221220201
412313301021230
5214003020130
615234523244
72566612462
oct667611154
9260827821
10115282540
115a08a52a
1232736524
131ab64929
141144c832
15a1c2bca
hex6df126c

115282540 has 48 divisors (see below), whose sum is σ = 255830400. Its totient is φ = 43565312.

The previous prime is 115282537. The next prime is 115282547. The reversal of 115282540 is 45282511.

It is a junction number, because it is equal to n+sod(n) for n = 115282499 and 115282508.

It is not an unprimeable number, because it can be changed into a prime (115282547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25146 + ... + 29374.

It is an arithmetic number, because the mean of its divisors is an integer number (5329800).

Almost surely, 2115282540 is an apocalyptic number.

115282540 is a gapful number since it is divisible by the number (10) 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 115282540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127915200).

115282540 is an abundant number, since it is smaller than the sum of its proper divisors (140547860).

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

115282540 is a wasteful number, since it uses less digits than its factorization.

115282540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314 (or 4312 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 115282540 is about 10736.9707087241. The cubic root of 115282540 is about 486.6923413823.

The spelling of 115282540 in words is "one hundred fifteen million, two hundred eighty-two thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 29 47 58 94 116 145 188 235 290 470 580 940 1363 2726 4229 5452 6815 8458 13630 16916 21145 27260 42290 84580 122641 198763 245282 397526 490564 613205 795052 993815 1226410 1987630 2452820 3975260 5764127 11528254 23056508 28820635 57641270 115282540