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30133333031 = 311291775253
BaseRepresentation
bin11100000100000101…
…100010110000100111
32212210001011220220112
4130010011202300213
5443203113124111
621502033523235
72114506050614
oct340405426047
985701156815
1030133333031
111186353211a
125a0b71351b
132ac2ba9999
14165c03550b
15bb56b4e8b
hex704162c27

30133333031 has 8 divisors (see below), whose sum is σ = 31108197504. Its totient is φ = 29158644960.

The previous prime is 30133333019. The next prime is 30133333037. The reversal of 30133333031 is 13033333103.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30133333031 is a prime.

It is a super-2 number, since 2×301333330312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30133332988 and 30133333006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30133333037) 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, 362801 + ... + 438053.

It is an arithmetic number, because the mean of its divisors is an integer number (3888524688).

Almost surely, 230133333031 is an apocalyptic number.

30133333031 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30133333031 is a deficient number, since it is larger than the sum of its proper divisors (974864473).

30133333031 is a wasteful number, since it uses less digits than its factorization.

30133333031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88201.

The product of its (nonzero) digits is 2187, while the sum is 23.

Adding to 30133333031 its reverse (13033333103), we get a palindrome (43166666134).

The spelling of 30133333031 in words is "thirty billion, one hundred thirty-three million, three hundred thirty-three thousand, thirty-one".

Divisors: 1 31 12917 75253 400427 2332843 972043001 30133333031