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10100010101 = 19531579479
BaseRepresentation
bin10010110100000000…
…11110110001110101
3222001212221200012012
421122000132301311
5131141100310401
64350114134005
7505200445406
oct113200366165
928055850165
1010100010101
114313213095
121b5a581305
13c4c63574c
146bb5579ad
153e1a658bb
hex25a01ec75

10100010101 has 4 divisors (see below), whose sum is σ = 10631589600. Its totient is φ = 9568430604.

The previous prime is 10100010071. The next prime is 10100010113. The reversal of 10100010101 is 10101000101.

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: 10101000101 = 13177106871.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10100010101 is a prime.

It is a Duffinian number.

10100010101 is a modest number, since divided by 10101 gives 10100 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100010121) 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, 265789721 + ... + 265789758.

It is an arithmetic number, because the mean of its divisors is an integer number (2657897400).

Almost surely, 210100010101 is an apocalyptic number.

It is an amenable number.

10100010101 is a deficient number, since it is larger than the sum of its proper divisors (531579499).

10100010101 is an equidigital number, since it uses as much as digits as its factorization.

10100010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531579498.

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

Adding to 10100010101 its reverse (10101000101), we get a palindrome (20201010202).

The spelling of 10100010101 in words is "ten billion, one hundred million, ten thousand, one hundred one".

Divisors: 1 19 531579479 10100010101