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30332121143 = 269811124203
BaseRepresentation
bin11100001111111011…
…110111000000110111
32220021220020101221012
4130033323313000313
5444110010334033
621533454342435
72122441530032
oct341773670067
986256211835
1030332121143
1111955767615
125a661baa1b
132b2512b49c
14167a5c0019
15bc7d80248
hex70fef7037

30332121143 has 4 divisors (see below), whose sum is σ = 30333272328. Its totient is φ = 30330969960.

The previous prime is 30332121137. The next prime is 30332121187. The reversal of 30332121143 is 34112123303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34112123303 = 122772778539.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30332121143 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 (30332171143) 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, 535121 + ... + 589082.

It is an arithmetic number, because the mean of its divisors is an integer number (7583318082).

Almost surely, 230332121143 is an apocalyptic number.

30332121143 is a deficient number, since it is larger than the sum of its proper divisors (1151185).

30332121143 is a wasteful number, since it uses less digits than its factorization.

30332121143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151184.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30332121143 its reverse (34112123303), we get a palindrome (64444244446).

The spelling of 30332121143 in words is "thirty billion, three hundred thirty-two million, one hundred twenty-one thousand, one hundred forty-three".

Divisors: 1 26981 1124203 30332121143