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30031130433 = 331322915381
BaseRepresentation
bin11011111101111111…
…101010111101000001
32212111220212111022010
4123331333222331001
5443000432133213
621443543203133
72112125253063
oct337577527501
985456774263
1030031130433
1111810876867
1259a14464a9
132aa7974785
14164c62d733
15bab727ac3
hex6fdfeaf41

30031130433 has 8 divisors (see below), whose sum is σ = 41333168896. Its totient is φ = 19374922800.

The previous prime is 30031130431. The next prime is 30031130461. The reversal of 30031130433 is 33403113003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30031130433 - 21 = 30031130431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30031130431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161457598 + ... + 161457783.

It is an arithmetic number, because the mean of its divisors is an integer number (5166646112).

Almost surely, 230031130433 is an apocalyptic number.

It is an amenable number.

30031130433 is a deficient number, since it is larger than the sum of its proper divisors (11302038463).

30031130433 is a wasteful number, since it uses less digits than its factorization.

30031130433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322915415.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 30031130433 its reverse (33403113003), we get a palindrome (63434243436).

The spelling of 30031130433 in words is "thirty billion, thirty-one million, one hundred thirty thousand, four hundred thirty-three".

Divisors: 1 3 31 93 322915381 968746143 10010376811 30031130433