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30558338945 = 56111667789
BaseRepresentation
bin11100011101011010…
…110011111110000001
32220212122220110102022
4130131122303332001
51000040413321240
622012135131225
72131156411121
oct343532637601
986778813368
1030558338945
1111a61427382
125b09b13b15
132b5cc65084
14169c668c81
15bdcb679b5
hex71d6b3f81

30558338945 has 4 divisors (see below), whose sum is σ = 36670006740. Its totient is φ = 24446671152.

The previous prime is 30558338929. The next prime is 30558338957. The reversal of 30558338945 is 54983385503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54983385503 = 411341058183.

It can be written as a sum of positive squares in 2 ways, for example, as 22948917121 + 7609421824 = 151489^2 + 87232^2 .

It is a cyclic number.

It is not a de Polignac number, because 30558338945 - 24 = 30558338929 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055833890 + ... + 3055833899.

It is an arithmetic number, because the mean of its divisors is an integer number (9167501685).

Almost surely, 230558338945 is an apocalyptic number.

It is an amenable number.

30558338945 is a deficient number, since it is larger than the sum of its proper divisors (6111667795).

30558338945 is an equidigital number, since it uses as much as digits as its factorization.

30558338945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111667794.

The product of its (nonzero) digits is 7776000, while the sum is 53.

The spelling of 30558338945 in words is "thirty billion, five hundred fifty-eight million, three hundred thirty-eight thousand, nine hundred forty-five".

Divisors: 1 5 6111667789 30558338945