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115345541 = 1131020757
BaseRepresentation
bin1101110000000…
…00100010000101
322001001011100002
412320000202011
5214012024131
615240131045
72600264243
oct670004205
9261034302
10115345541
115a1228a3
1232766a85
131ab874cc
1411467793
15a1d66cb
hex6e00885

115345541 has 4 divisors (see below), whose sum is σ = 116366412. Its totient is φ = 114324672.

The previous prime is 115345511. The next prime is 115345579. The reversal of 115345541 is 145543511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145543511 = 178561383.

It can be written as a sum of positive squares in 2 ways, for example, as 33062500 + 82283041 = 5750^2 + 9071^2 .

It is a cyclic number.

It is not a de Polignac number, because 115345541 - 214 = 115329157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115345511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510266 + ... + 510491.

It is an arithmetic number, because the mean of its divisors is an integer number (29091603).

Almost surely, 2115345541 is an apocalyptic number.

It is an amenable number.

115345541 is a deficient number, since it is larger than the sum of its proper divisors (1020871).

115345541 is a wasteful number, since it uses less digits than its factorization.

115345541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020870.

The product of its digits is 6000, while the sum is 29.

The square root of 115345541 is about 10739.9041429614. The cubic root of 115345541 is about 486.7809830805.

The spelling of 115345541 in words is "one hundred fifteen million, three hundred forty-five thousand, five hundred forty-one".

Divisors: 1 113 1020757 115345541