Search a number
-
+
20763302071 = 1031391314489
BaseRepresentation
bin10011010101100101…
…101101100010110111
31222121000211000211211
4103111211231202313
5320010401131241
613312153342251
71333351104241
oct232545554267
958530730754
1020763302071
118895385186
124035707987
131c5b87bc75
14100d81b091
15817c94781
hex4d596d8b7

20763302071 has 8 divisors (see below), whose sum is σ = 20967841440. Its totient is φ = 20558819712.

The previous prime is 20763302017. The next prime is 20763302089. The reversal of 20763302071 is 17020336702.

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 20763302071 - 217 = 20763170999 is a prime.

It is a super-2 number, since 2×207633020712 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20763305071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1425795 + ... + 1440283.

It is an arithmetic number, because the mean of its divisors is an integer number (2620980180).

Almost surely, 220763302071 is an apocalyptic number.

20763302071 is a deficient number, since it is larger than the sum of its proper divisors (204539369).

20763302071 is a wasteful number, since it uses less digits than its factorization.

20763302071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28505.

The product of its (nonzero) digits is 10584, while the sum is 31.

Adding to 20763302071 its reverse (17020336702), we get a palindrome (37783638773).

The spelling of 20763302071 in words is "twenty billion, seven hundred sixty-three million, three hundred two thousand, seventy-one".

Divisors: 1 103 13913 14489 1433039 1492367 201585457 20763302071