Search a number
-
+
30211320101 = 191590069479
BaseRepresentation
bin11100001000101111…
…000010100100100101
32212222110221002001112
4130020233002210211
5443333044220401
621513501234405
72116443661304
oct341057024445
985873832045
1030211320101
11118a3558a46
125a31862a05
132b060b3a91
14166853643b
15bbc46c3bb
hex708bc2925

30211320101 has 4 divisors (see below), whose sum is σ = 31801389600. Its totient is φ = 28621250604.

The previous prime is 30211320091. The next prime is 30211320199. The reversal of 30211320101 is 10102311203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10102311203 = 79127877357.

It is a cyclic number.

It is not a de Polignac number, because 30211320101 - 234 = 13031450917 is a prime.

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 (30213320101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 795034721 + ... + 795034758.

It is an arithmetic number, because the mean of its divisors is an integer number (7950347400).

Almost surely, 230211320101 is an apocalyptic number.

It is an amenable number.

30211320101 is a deficient number, since it is larger than the sum of its proper divisors (1590069499).

30211320101 is a wasteful number, since it uses less digits than its factorization.

30211320101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590069498.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30211320101 its reverse (10102311203), we get a palindrome (40313631304).

The spelling of 30211320101 in words is "thirty billion, two hundred eleven million, three hundred twenty thousand, one hundred one".

Divisors: 1 19 1590069479 30211320101