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11107540 = 2252572161
BaseRepresentation
bin101010010111…
…110011010100
3202220022200101
4222113303110
510320420130
61034023444
7163261333
oct52276324
922808611
1011107540
1162a7294
123877b84
1323bba12
141691d1a
15e961ca
hexa97cd4

11107540 has 24 divisors (see below), whose sum is σ = 23427432. Its totient is φ = 4423680.

The previous prime is 11107519. The next prime is 11107541. The reversal of 11107540 is 4570111.

It can be written as a sum of positive squares in 4 ways, for example, as 4787344 + 6320196 = 2188^2 + 2514^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11107541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4060 + ... + 6220.

It is an arithmetic number, because the mean of its divisors is an integer number (976143).

Almost surely, 211107540 is an apocalyptic number.

11107540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11107540 is an abundant number, since it is smaller than the sum of its proper divisors (12319892).

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

11107540 is a wasteful number, since it uses less digits than its factorization.

11107540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427 (or 2425 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 11107540 is about 3332.7976236189. The cubic root of 11107540 is about 223.1204079380.

Adding to 11107540 its reverse (4570111), we get a palindrome (15677651).

The spelling of 11107540 in words is "eleven million, one hundred seven thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 257 514 1028 1285 2161 2570 4322 5140 8644 10805 21610 43220 555377 1110754 2221508 2776885 5553770 11107540