Search a number
-
+
20101773 = 328323677
BaseRepresentation
bin100110010101…
…1101010001101
31101211021110010
41030223222031
520121224043
61554503433
7332601516
oct114535215
941737403
1020101773
111038a83a
126894b79
13421a853
142953a0d
151b71133
hex132ba8d

20101773 has 8 divisors (see below), whose sum is σ = 26898208. Its totient is φ = 13353264.

The previous prime is 20101771. The next prime is 20101817. The reversal of 20101773 is 37710102.

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

It is not a de Polignac number, because 20101773 - 21 = 20101771 is a prime.

It is the 4484-th Hogben number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101771) by changing a digit.

It is a nontrivial repunit in base 4483.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10990 + ... + 12687.

It is an arithmetic number, because the mean of its divisors is an integer number (3362276).

Almost surely, 220101773 is an apocalyptic number.

It is an amenable number.

20101773 is a deficient number, since it is larger than the sum of its proper divisors (6796435).

20101773 is a wasteful number, since it uses less digits than its factorization.

20101773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23963.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 20101773 is about 4483.5000836400. The cubic root of 20101773 is about 271.9014069211.

Adding to 20101773 its reverse (37710102), we get a palindrome (57811875).

The spelling of 20101773 in words is "twenty million, one hundred one thousand, seven hundred seventy-three".

Divisors: 1 3 283 849 23677 71031 6700591 20101773