Search a number
-
+
30221131054 = 215110565527
BaseRepresentation
bin11100001001010100…
…011101110100101110
32220000011101112011011
4130021110131310232
5443343102143204
621514451415434
72116623242542
oct341124356456
986004345134
1030221131054
11118a904a074
125a34bb457a
132b0813a58a
14166996ba22
15bbd259304
hex70951dd2e

30221131054 has 4 divisors (see below), whose sum is σ = 45331696584. Its totient is φ = 15110565526.

The previous prime is 30221131049. The next prime is 30221131121. The reversal of 30221131054 is 45013112203.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45013112203 = 355911264733.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7555282762 + ... + 7555282765.

It is an arithmetic number, because the mean of its divisors is an integer number (11332924146).

Almost surely, 230221131054 is an apocalyptic number.

30221131054 is a deficient number, since it is larger than the sum of its proper divisors (15110565530).

30221131054 is a wasteful number, since it uses less digits than its factorization.

30221131054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15110565529.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 30221131054 its reverse (45013112203), we get a palindrome (75234243257).

The spelling of 30221131054 in words is "thirty billion, two hundred twenty-one million, one hundred thirty-one thousand, fifty-four".

Divisors: 1 2 15110565527 30221131054