Search a number
-
+
30213021101 = 797112933577
BaseRepresentation
bin11100001000110101…
…100001110110101101
32212222121010111101112
4130020311201312231
5443334013133401
621514001521405
72116464304424
oct341065416655
985877114345
1030213021101
11118a450aa2a
125a32343265
132b0655b0a3
14166885a2bb
15bbc6a63bb
hex708d61dad

30213021101 has 8 divisors (see below), whose sum is σ = 30278625720. Its totient is φ = 30147487488.

The previous prime is 30213021037. The next prime is 30213021107. The reversal of 30213021101 is 10112031203.

It can be written as a sum of positive squares in 4 ways, for example, as 1863217225 + 28349803876 = 43165^2 + 168374^2 .

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 30213021101 - 26 = 30213021037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30213021107) 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, 883025 + ... + 916601.

It is an arithmetic number, because the mean of its divisors is an integer number (3784828215).

Almost surely, 230213021101 is an apocalyptic number.

It is an amenable number.

30213021101 is a deficient number, since it is larger than the sum of its proper divisors (65604619).

30213021101 is a wasteful number, since it uses less digits than its factorization.

30213021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35503.

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

Adding to 30213021101 its reverse (10112031203), we get a palindrome (40325052304).

The spelling of 30213021101 in words is "thirty billion, two hundred thirteen million, twenty-one thousand, one hundred one".

Divisors: 1 797 1129 33577 899813 26760869 37908433 30213021101