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30772131349 = 412034736887
BaseRepresentation
bin11100101010001010…
…010111011000010101
32221102120012020110111
4130222022113120111
51001010131200344
622045253323021
72136363541441
oct345212273025
987376166414
1030772131349
111206107a813
125b69636471
132b9533b15b
1416bcbdb821
15c017e8834
hex72a297615

30772131349 has 8 divisors (see below), whose sum is σ = 31525075008. Its totient is φ = 30019302240.

The previous prime is 30772131347. The next prime is 30772131389. The reversal of 30772131349 is 94313127703.

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 30772131349 - 21 = 30772131347 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 (30772131343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815784 + ... + 852670.

It is an arithmetic number, because the mean of its divisors is an integer number (3940634376).

Almost surely, 230772131349 is an apocalyptic number.

It is an amenable number.

30772131349 is a deficient number, since it is larger than the sum of its proper divisors (752943659).

30772131349 is a wasteful number, since it uses less digits than its factorization.

30772131349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57275.

The product of its (nonzero) digits is 95256, while the sum is 40.

The spelling of 30772131349 in words is "thirty billion, seven hundred seventy-two million, one hundred thirty-one thousand, three hundred forty-nine".

Divisors: 1 41 20347 36887 834227 1512367 750539789 30772131349