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101111010001010 = 2510111101000101
BaseRepresentation
bin10110111111010110111101…
…110101011000000001110010
3111021000010012010122022001122
4112333112331311120001302
5101223100322030013020
6555013431242502242
730204013041265142
oct2677267565300162
9437003163568048
10101111010001010
112a242a36206959
12b40bba8804982
13445595bc3a9c9
141ad7b28630922
15ba51e1b38125
hex5bf5bdd58072

101111010001010 has 8 divisors (see below), whose sum is σ = 181999818001836. Its totient is φ = 40444404000400.

The previous prime is 101111010000991. The next prime is 101111010001081. The reversal of 101111010001010 is 10100010111101.

It can be written as a sum of positive squares in 2 ways, for example, as 99449739057601 + 1661270943409 = 9972449^2 + 1288903^2 .

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

It is a Curzon number.

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, 5055550500041 + ... + 5055550500060.

Almost surely, 2101111010001010 is an apocalyptic number.

101111010001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101111010001010 is a deficient number, since it is larger than the sum of its proper divisors (80888808000826).

101111010001010 is a wasteful number, since it uses less digits than its factorization.

101111010001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111101000108.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 101111010001010 its reverse (10100010111101), we get a palindrome (111211020112111).

The spelling of 101111010001010 in words is "one hundred one trillion, one hundred eleven billion, ten million, one thousand, ten".

Divisors: 1 2 5 10 10111101000101 20222202000202 50555505000505 101111010001010