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10501010101 = 46722486103
BaseRepresentation
bin10011100011110100…
…01011001010110101
31000002211111120210001
421301322023022311
5133001224310401
64454001031301
7521140053541
oct116172131265
930084446701
1010501010101
1144a960134a
122050925531
13cb473725a
147188dca21
15416d75601
hex271e8b2b5

10501010101 has 4 divisors (see below), whose sum is σ = 10523496672. Its totient is φ = 10478523532.

The previous prime is 10501010083. The next prime is 10501010137. The reversal of 10501010101 is 10101010501.

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: 10101010501 = 49312048471.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10501010101 is a prime.

It is a super-2 number, since 2×105010101012 (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

10501010101 is a modest number, since divided by 1010101 gives 105 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10501010161) 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, 11242585 + ... + 11243518.

It is an arithmetic number, because the mean of its divisors is an integer number (2630874168).

Almost surely, 210501010101 is an apocalyptic number.

It is an amenable number.

10501010101 is a deficient number, since it is larger than the sum of its proper divisors (22486571).

10501010101 is an equidigital number, since it uses as much as digits as its factorization.

10501010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22486570.

The product of its (nonzero) digits is 5, while the sum is 10.

Adding to 10501010101 its reverse (10101010501), we get a palindrome (20602020602).

The spelling of 10501010101 in words is "ten billion, five hundred one million, ten thousand, one hundred one".

Divisors: 1 467 22486103 10501010101