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124102342145 = 555849444421
BaseRepresentation
bin111001110010100010…
…0110111011000000001
3102212022220110011222102
41303211010313120001
54013130144422040
6133002315520145
711652241334405
oct1634504673001
9385286404872
10124102342145
11486a459a531
1220075759055
13b91a08c662
1460140db105
1533651e4515
hex1ce5137601

124102342145 has 8 divisors (see below), whose sum is σ = 148925812200. Its totient is φ = 99279872640.

The previous prime is 124102341997. The next prime is 124102342153. The reversal of 124102342145 is 541243201421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42667446721 + 81434895424 = 206561^2 + 285368^2 .

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

It is not a de Polignac number, because 124102342145 - 28 = 124102341889 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 57035 + ... + 501455.

It is an arithmetic number, because the mean of its divisors is an integer number (18615726525).

Almost surely, 2124102342145 is an apocalyptic number.

It is an amenable number.

124102342145 is a deficient number, since it is larger than the sum of its proper divisors (24823470055).

124102342145 is an equidigital number, since it uses as much as digits as its factorization.

124102342145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500275.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 124102342145 its reverse (541243201421), we get a palindrome (665345543566).

The spelling of 124102342145 in words is "one hundred twenty-four billion, one hundred two million, three hundred forty-two thousand, one hundred forty-five".

Divisors: 1 5 55849 279245 444421 2222105 24820468429 124102342145