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101151042005 = 5131556169877
BaseRepresentation
bin101111000110100010…
…0100110100111010101
3100200002101112100001002
41132031010212213111
53124124131321010
6114245041513045
710210421446046
oct1361504464725
9320071470032
10101151042005
1139997142a92
121772b342785
139700121ba0
144c77c888cd
1529703041a5
hex178d1269d5

101151042005 has 8 divisors (see below), whose sum is σ = 130718269752. Its totient is φ = 74696154048.

The previous prime is 101151041977. The next prime is 101151042011. The reversal of 101151042005 is 500240151101.

It can be written as a sum of positive squares in 4 ways, for example, as 964324 + 101150077681 = 982^2 + 318041^2 .

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 101151042005 - 26 = 101151041941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 778084874 + ... + 778085003.

It is an arithmetic number, because the mean of its divisors is an integer number (16339783719).

Almost surely, 2101151042005 is an apocalyptic number.

It is an amenable number.

101151042005 is a deficient number, since it is larger than the sum of its proper divisors (29567227747).

101151042005 is a wasteful number, since it uses less digits than its factorization.

101151042005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556169895.

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 101151042005 its reverse (500240151101), we get a palindrome (601391193106).

The spelling of 101151042005 in words is "one hundred one billion, one hundred fifty-one million, forty-two thousand, five".

Divisors: 1 5 13 65 1556169877 7780849385 20230208401 101151042005