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32143123345 = 513241485509
BaseRepresentation
bin11101111011111000…
…010010001110010001
310001222002221211220211
4131323320102032101
51011312114421340
622433310404121
72215352016604
oct357370221621
9101862854824
1032143123345
11126a4a56353
126290800641
1330533a1318
1417acd1c33b
15c81d5d5ea
hex77be12391

32143123345 has 8 divisors (see below), whose sum is σ = 38574740520. Its totient is φ = 25712503680.

The previous prime is 32143123333. The next prime is 32143123349. The reversal of 32143123345 is 54332134123.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20738592081 + 11404531264 = 144009^2 + 106792^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 32143123345 - 27 = 32143123217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32143123349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176550 + ... + 308959.

It is an arithmetic number, because the mean of its divisors is an integer number (4821842565).

Almost surely, 232143123345 is an apocalyptic number.

It is an amenable number.

32143123345 is a deficient number, since it is larger than the sum of its proper divisors (6431617175).

32143123345 is a wasteful number, since it uses less digits than its factorization.

32143123345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498755.

The product of its digits is 25920, while the sum is 31.

Adding to 32143123345 its reverse (54332134123), we get a palindrome (86475257468).

The spelling of 32143123345 in words is "thirty-two billion, one hundred forty-three million, one hundred twenty-three thousand, three hundred forty-five".

Divisors: 1 5 13241 66205 485509 2427545 6428624669 32143123345