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30783882137 = 194613514543
BaseRepresentation
bin11100101010110111…
…001100001110011001
32221110101022020111212
4130222313030032121
51001021133212022
622050353232505
72136565452341
oct345267141631
987411266455
1030783882137
1112067776308
125b71562735
132b978c3898
1416c05b9d21
15c0286a3e2
hex72adcc399

30783882137 has 8 divisors (see below), whose sum is σ = 32474386560. Its totient is φ = 29100407760.

The previous prime is 30783882121. The next prime is 30783882161. The reversal of 30783882137 is 73128838703.

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

It is a cyclic number.

It is not a de Polignac number, because 30783882137 - 24 = 30783882121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30783882187) 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 7 ways as a sum of consecutive naturals, for example, 1748513 + ... + 1766030.

It is an arithmetic number, because the mean of its divisors is an integer number (4059298320).

Almost surely, 230783882137 is an apocalyptic number.

It is an amenable number.

30783882137 is a deficient number, since it is larger than the sum of its proper divisors (1690504423).

30783882137 is a wasteful number, since it uses less digits than its factorization.

30783882137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515023.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 30783882137 in words is "thirty billion, seven hundred eighty-three million, eight hundred eighty-two thousand, one hundred thirty-seven".

Divisors: 1 19 461 8759 3514543 66776317 1620204323 30783882137