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49999600001 = 133846123077
BaseRepresentation
bin101110100100001101…
…010101100110000001
311210001120001211221002
4232210031111212001
51304344344200001
634545224541345
73420015405401
oct564415254601
9153046054832
1049999600001
111a22851a57a
129834921855
13493a95c940
1425c4668801
15147981646b
hexba4355981

49999600001 has 4 divisors (see below), whose sum is σ = 53845723092. Its totient is φ = 46153476912.

The previous prime is 49999599961. The next prime is 49999600037. The reversal of 49999600001 is 10000699994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10000699994 = 25000349997.

It can be written as a sum of positive squares in 2 ways, for example, as 10000000000 + 39999600001 = 100000^2 + 199999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49999600001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49999609001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1923061526 + ... + 1923061551.

It is an arithmetic number, because the mean of its divisors is an integer number (13461430773).

Almost surely, 249999600001 is an apocalyptic number.

It is an amenable number.

49999600001 is a deficient number, since it is larger than the sum of its proper divisors (3846123091).

49999600001 is a wasteful number, since it uses less digits than its factorization.

49999600001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846123090.

The product of its (nonzero) digits is 157464, while the sum is 47.

The spelling of 49999600001 in words is "forty-nine billion, nine hundred ninety-nine million, six hundred thousand, one".

Divisors: 1 13 3846123077 49999600001