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115881441 = 31323173101
BaseRepresentation
bin1101110100000…
…11010111100001
322002001101110020
412322003113201
5214131201231
615255424053
72604655524
oct672032741
9262041406
10115881441
115a459495
1232985029
131b014400
1411566bbb
15a290396
hex6e835e1

115881441 has 48 divisors (see below), whose sum is σ = 176804352. Its totient is φ = 67392000.

The previous prime is 115881439. The next prime is 115881473. The reversal of 115881441 is 144188511.

It is not a de Polignac number, because 115881441 - 21 = 115881439 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (115881541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1147291 + ... + 1147391.

It is an arithmetic number, because the mean of its divisors is an integer number (3683424).

Almost surely, 2115881441 is an apocalyptic number.

It is an amenable number.

115881441 is a deficient number, since it is larger than the sum of its proper divisors (60922911).

115881441 is a wasteful number, since it uses less digits than its factorization.

115881441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 221 counting only the distinct ones).

The product of its digits is 5120, while the sum is 33.

The square root of 115881441 is about 10764.8242438044. The cubic root of 115881441 is about 487.5336865611.

The spelling of 115881441 in words is "one hundred fifteen million, eight hundred eighty-one thousand, four hundred forty-one".

Divisors: 1 3 13 31 39 73 93 101 169 219 303 403 507 949 1209 1313 2263 2847 3131 3939 5239 6789 7373 9393 12337 15717 17069 22119 29419 37011 40703 51207 88257 95849 122109 228563 287547 382447 529139 685689 1147341 1246037 1587417 2971319 3738111 8913957 38627147 115881441