Search a number
101111001010 = 2512018418901
BaseRepresentation
bin101111000101010101…
…1110110111110110010
3100122222121012001010021
41132022223312332302
53124033404013020
6114241051354054
710206424220335
oct1361253667662
9318877161107
10101111001010
1139976584658
1217719a5292a
1396c4a427a6
144c7282461c
15296ba451aa
hex178aaf6fb2

101111001010 has 16 divisors (see below), whose sum is σ = 182151363672. Its totient is φ = 40410720000.

The previous prime is 101111001001. The next prime is 101111001037. The reversal of 101111001010 is 10100111101.

It is a happy number.

101111001010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 38679482241 + 62431518769 = 196671^2 + 249863^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101111000984 and 101111001002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4197441 + ... + 4221460.

Almost surely, 2101111001010 is an apocalyptic number.

101111001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101111001010 is a deficient number, since it is larger than the sum of its proper divisors (81040362662).

101111001010 is a wasteful number, since it uses less digits than its factorization.

101111001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8420109.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 101111001010 its reverse (10100111101), we get a palindrome (111211112111).

The spelling of 101111001010 in words is "one hundred one billion, one hundred eleven million, one thousand, ten".