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100101001010 = 2510010100101
BaseRepresentation
bin101110100111001111…
…1000000111100110010
3100120101012200201120212
41131032133000330302
53120001324013020
6113552531504122
710142411320043
oct1351637007462
9316335621525
10100101001010
11394a845070a
1217497758042
139593713a5a
144bb86328ca
15290d03acc5
hex174e7c0f32

100101001010 has 8 divisors (see below), whose sum is σ = 180181801836. Its totient is φ = 40040400400.

The previous prime is 100101000977. The next prime is 100101001027. The reversal of 100101001010 is 10100101001.

It can be written as a sum of positive squares in 2 ways, for example, as 95937009169 + 4163991841 = 309737^2 + 64529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a junction number, because it is equal to n+sod(n) for n = 100101000985 and 100101001003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5005050041 + ... + 5005050060.

Almost surely, 2100101001010 is an apocalyptic number.

100101001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100101001010 is a deficient number, since it is larger than the sum of its proper divisors (80080800826).

100101001010 is a wasteful number, since it uses less digits than its factorization.

100101001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010100108.

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

Adding to 100101001010 its reverse (10100101001), we get a palindrome (110201102011).

Subtracting from 100101001010 its reverse (10100101001), we obtain a palindrome (90000900009).

The spelling of 100101001010 in words is "one hundred billion, one hundred one million, one thousand, ten".

Divisors: 1 2 5 10 10010100101 20020200202 50050500505 100101001010