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340711749 = 32722926641
BaseRepresentation
bin10100010011101…
…101100101000101
3212202002221122200
4110103231211011
51144210233444
653450345113
711305000500
oct2423554505
9782087580
10340711749
11165360864
129612b199
13557835b1
1433370137
151eda1969
hex144ed945

340711749 has 36 divisors (see below), whose sum is σ = 592251660. Its totient is φ = 187971840.

The previous prime is 340711741. The next prime is 340711751. The reversal of 340711749 is 947117043.

It can be written as a sum of positive squares in 2 ways, for example, as 87329025 + 253382724 = 9345^2 + 15918^2 .

It is not a de Polignac number, because 340711749 - 23 = 340711741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340711741) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 532 + ... + 26109.

It is an arithmetic number, because the mean of its divisors is an integer number (16451435).

Almost surely, 2340711749 is an apocalyptic number.

It is an amenable number.

340711749 is a deficient number, since it is larger than the sum of its proper divisors (251539911).

340711749 is a wasteful number, since it uses less digits than its factorization.

340711749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26690 (or 26680 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 340711749 is about 18458.3788291388. The cubic root of 340711749 is about 698.4398921979.

The spelling of 340711749 in words is "three hundred forty million, seven hundred eleven thousand, seven hundred forty-nine".

Divisors: 1 3 7 9 21 29 49 63 87 147 203 261 441 609 1421 1827 4263 12789 26641 79923 186487 239769 559461 772589 1305409 1678383 2317767 3916227 5408123 6953301 11748681 16224369 37856861 48673107 113570583 340711749