Search a number
-
+
10021211020105 = 54139484233439
BaseRepresentation
bin1001000111010011111010…
…1110010001101101001001
31022111000111102111201100121
42101310332232101231021
52303141420010120410
633151403014503241
72053002644135125
oct221647656215511
938430442451317
1010021211020105
113213a764063aa
12115a217364b21
13578cc46b55ac
1426905a1b2585
15125a1c1749da
hex91d3eb91b49

10021211020105 has 8 divisors (see below), whose sum is σ = 12028358649600. Its totient is φ = 8015031865776.

The previous prime is 10021211020091. The next prime is 10021211020133. The reversal of 10021211020105 is 50102011212001.

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

It is a cyclic number.

It is not a de Polignac number, because 10021211020105 - 217 = 10021210889033 is a prime.

It is a super-2 number, since 2×100212110201052 (a number of 27 digits) contains 22 as substring.

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, 242096025 + ... + 242137414.

It is an arithmetic number, because the mean of its divisors is an integer number (1503544831200).

Almost surely, 210021211020105 is an apocalyptic number.

It is an amenable number.

10021211020105 is a deficient number, since it is larger than the sum of its proper divisors (2007147629495).

10021211020105 is an equidigital number, since it uses as much as digits as its factorization.

10021211020105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484237583.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 10021211020105 its reverse (50102011212001), we get a palindrome (60123222232106).

The spelling of 10021211020105 in words is "ten trillion, twenty-one billion, two hundred eleven million, twenty thousand, one hundred five".

Divisors: 1 5 4139 20695 484233439 2421167195 2004242204021 10021211020105