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10010001101 = 71140985931
BaseRepresentation
bin10010101001010010…
…00111111011001101
3221211121120202001112
421110221013323031
5131000030013401
64333141021405
7503025414452
oct112451077315
927747522045
1010010001101
114277425a91
121b343b4865
13c36aac699
146ad607829
153d8bd63bb
hex254a47ecd

10010001101 has 4 divisors (see below), whose sum is σ = 10150987104. Its totient is φ = 9869015100.

The previous prime is 10010001077. The next prime is 10010001103. The reversal of 10010001101 is 10110001001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10110001001 = 21503470167.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10010001101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010001103) 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, 70492895 + ... + 70493036.

It is an arithmetic number, because the mean of its divisors is an integer number (2537746776).

Almost surely, 210010001101 is an apocalyptic number.

It is an amenable number.

10010001101 is a deficient number, since it is larger than the sum of its proper divisors (140986003).

10010001101 is an equidigital number, since it uses as much as digits as its factorization.

10010001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140986002.

The product of its (nonzero) digits is 1, while the sum is 5.

Adding to 10010001101 its reverse (10110001001), we get a palindrome (20120002102).

The spelling of 10010001101 in words is "ten billion, ten million, one thousand, one hundred one".

Divisors: 1 71 140985931 10010001101