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30901529717 = 262111789977
BaseRepresentation
bin11100110001110111…
…111110110001110101
32221202120200100122122
4130301313332301311
51001241242422332
622110155005325
72142524445242
oct346167766165
987676610578
1030901529717
1112118120713
125ba4a39845
132bb60a5b36
1416d20825c9
15c0cd58c12
hex731dfec75

30901529717 has 4 divisors (see below), whose sum is σ = 30913322316. Its totient is φ = 30889737120.

The previous prime is 30901529699. The next prime is 30901529767. The reversal of 30901529717 is 71792510903.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16979653636 + 13921876081 = 130306^2 + 117991^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30901529717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30901529767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5892368 + ... + 5897609.

It is an arithmetic number, because the mean of its divisors is an integer number (7728330579).

Almost surely, 230901529717 is an apocalyptic number.

It is an amenable number.

30901529717 is a deficient number, since it is larger than the sum of its proper divisors (11792599).

30901529717 is a wasteful number, since it uses less digits than its factorization.

30901529717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11792598.

The product of its (nonzero) digits is 119070, while the sum is 44.

The spelling of 30901529717 in words is "thirty billion, nine hundred one million, five hundred twenty-nine thousand, seven hundred seventeen".

Divisors: 1 2621 11789977 30901529717