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43142122345 = 574492745283
BaseRepresentation
bin101000001011011110…
…001000101101101001
311010100122111220001011
4220023132020231221
51201323340403340
631452541223521
73055046663230
oct501336105551
9133318456034
1043142122345
1117329670073
128440261ba1
1340b703815a
142133a0bb17
1511c77a10ea
hexa0b788b69

43142122345 has 16 divisors (see below), whose sum is σ = 59298134400. Its totient is φ = 29517272064.

The previous prime is 43142122343. The next prime is 43142122379. The reversal of 43142122345 is 54322124134.

It is not a de Polignac number, because 43142122345 - 21 = 43142122343 is a prime.

It is a super-2 number, since 2×431421223452 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43142122343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1356927 + ... + 1388356.

It is an arithmetic number, because the mean of its divisors is an integer number (3706133400).

Almost surely, 243142122345 is an apocalyptic number.

It is an amenable number.

43142122345 is a deficient number, since it is larger than the sum of its proper divisors (16156012055).

43142122345 is a wasteful number, since it uses less digits than its factorization.

43142122345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745744.

The product of its digits is 23040, while the sum is 31.

Adding to 43142122345 its reverse (54322124134), we get a palindrome (97464246479).

The spelling of 43142122345 in words is "forty-three billion, one hundred forty-two million, one hundred twenty-two thousand, three hundred forty-five".

Divisors: 1 5 7 35 449 2245 3143 15715 2745283 13726415 19216981 96084905 1232632067 6163160335 8628424469 43142122345