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10100100100 = 2252101001001
BaseRepresentation
bin10010110100000001…
…10100110000000100
3222001220010020122111
421122000310300010
5131141111200400
64350120110404
7505201301656
oct113200646004
928056106574
1010100100100
114313274772
121b5a605404
13c4c6676bc
146bb57c6d6
153e1a823ba
hex25a034c04

10100100100 has 18 divisors (see below), whose sum is σ = 21917217434. Its totient is φ = 4040040000.

The previous prime is 10100100079. The next prime is 10100100133. The reversal of 10100100100 is 100100101.

It can be written as a sum of positive squares in 3 ways, for example, as 1244537284 + 8855562816 = 35278^2 + 94104^2 .

It is a Harshad number since it is a multiple of its sum of digits (4).

10100100100 is a modest number, since divided by 100100 gives 10100 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 10100100100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50500401 + ... + 50500600.

Almost surely, 210100100100 is an apocalyptic number.

10100100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10100100100 is an abundant number, since it is smaller than the sum of its proper divisors (11817117334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10100100100 is a wasteful number, since it uses less digits than its factorization.

10100100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101001015 (or 101001008 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 4.

Adding to 10100100100 its reverse (100100101), we get a palindrome (10200200201).

Subtracting from 10100100100 its reverse (100100101), we obtain a palindrome (9999999999).

The spelling of 10100100100 in words is "ten billion, one hundred million, one hundred thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 101001001 202002002 404004004 505005005 1010010010 2020020020 2525025025 5050050050 10100100100