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451554142001 = 17121321897781
BaseRepresentation
bin1101001001000101011…
…10010110011100110001
31121011112120210010122112
412210202232112130301
524344240330021001
6543235140215105
744423634610004
oct6444256263461
91534476703575
10451554142001
111645595a5326
127362069a495
1333773378b01
1417bd908b53b
15bb2c92ecbb
hex6922b96731

451554142001 has 8 divisors (see below), whose sum is σ = 478510332264. Its totient is φ = 424641749760.

The previous prime is 451554141979. The next prime is 451554142027. The reversal of 451554142001 is 100241455154.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 58486585600 + 393067556401 = 241840^2 + 626951^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 451554142001 - 218 = 451553879857 is a prime.

It is a super-2 number, since 2×4515541420012 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451554142051) 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, 10928270 + ... + 10969511.

It is an arithmetic number, because the mean of its divisors is an integer number (59813791533).

Almost surely, 2451554142001 is an apocalyptic number.

It is an amenable number.

451554142001 is a deficient number, since it is larger than the sum of its proper divisors (26956190263).

451554142001 is a wasteful number, since it uses less digits than its factorization.

451554142001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21899011.

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 451554142001 its reverse (100241455154), we get a palindrome (551795597155).

The spelling of 451554142001 in words is "four hundred fifty-one billion, five hundred fifty-four million, one hundred forty-two thousand, one".

Divisors: 1 17 1213 20621 21897781 372262277 26562008353 451554142001