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30557558033 = 139219838547
BaseRepresentation
bin11100011101010111…
…110101010100010001
32220212121102210012122
4130131113311110101
51000040213324113
622012110304025
72131146646322
oct343527652421
986777383178
1030557558033
1111a60a436a2
125b097b8015
132b5ca507b2
14169c504449
15bdca61408
hex71d5f5511

30557558033 has 4 divisors (see below), whose sum is σ = 30777396720. Its totient is φ = 30337719348.

The previous prime is 30557558029. The next prime is 30557558041. The reversal of 30557558033 is 33085575503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33085575503 = 71081465463.

It is a cyclic number.

It is not a de Polignac number, because 30557558033 - 22 = 30557558029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30557558093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109919135 + ... + 109919412.

It is an arithmetic number, because the mean of its divisors is an integer number (7694349180).

Almost surely, 230557558033 is an apocalyptic number.

It is an amenable number.

30557558033 is a deficient number, since it is larger than the sum of its proper divisors (219838687).

30557558033 is a wasteful number, since it uses less digits than its factorization.

30557558033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219838686.

The product of its (nonzero) digits is 945000, while the sum is 44.

The spelling of 30557558033 in words is "thirty billion, five hundred fifty-seven million, five hundred fifty-eight thousand, thirty-three".

Divisors: 1 139 219838547 30557558033