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30464743147 = 148120570387
BaseRepresentation
bin11100010111110101…
…110001011011101011
32220122010210022010021
4130113311301123223
5444342433240042
621554553101311
72125642021066
oct342765613353
986563708107
1030464743147
1111a1360a483
125aa26b7837
132b46754547
1416900638dd
15bd482a867
hex717d716eb

30464743147 has 4 divisors (see below), whose sum is σ = 30485315016. Its totient is φ = 30444171280.

The previous prime is 30464743129. The next prime is 30464743163. The reversal of 30464743147 is 74134746403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74134746403 = 174174256459.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30464743147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30464743117) 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, 10283713 + ... + 10286674.

It is an arithmetic number, because the mean of its divisors is an integer number (7621328754).

Almost surely, 230464743147 is an apocalyptic number.

30464743147 is a deficient number, since it is larger than the sum of its proper divisors (20571869).

30464743147 is a wasteful number, since it uses less digits than its factorization.

30464743147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20571868.

The product of its (nonzero) digits is 677376, while the sum is 43.

The spelling of 30464743147 in words is "thirty billion, four hundred sixty-four million, seven hundred forty-three thousand, one hundred forty-seven".

Divisors: 1 1481 20570387 30464743147