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30641067377 = 73419740649
BaseRepresentation
bin11100100010010110…
…011001010101110001
32221002102120111111022
4130202112121111301
51000223103124002
622024252225225
72133212526644
oct344226312561
987072514438
1030641067377
1111aa40a1488
125b3176b215
132b7413c2cb
1416a9641a5b
15be5059ba2
hex722599571

30641067377 has 4 divisors (see below), whose sum is σ = 31060808100. Its totient is φ = 30221326656.

The previous prime is 30641067367. The next prime is 30641067389. The reversal of 30641067377 is 77376014603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77376014603 = 160148329803.

It can be written as a sum of positive squares in 2 ways, for example, as 26298784561 + 4342282816 = 162169^2 + 65896^2 .

It is a cyclic number.

It is not a de Polignac number, because 30641067377 - 222 = 30636873073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30641067367) 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 3 ways as a sum of consecutive naturals, for example, 209870252 + ... + 209870397.

It is an arithmetic number, because the mean of its divisors is an integer number (7765202025).

Almost surely, 230641067377 is an apocalyptic number.

It is an amenable number.

30641067377 is a deficient number, since it is larger than the sum of its proper divisors (419740723).

30641067377 is an equidigital number, since it uses as much as digits as its factorization.

30641067377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419740722.

The product of its (nonzero) digits is 444528, while the sum is 44.

The spelling of 30641067377 in words is "thirty billion, six hundred forty-one million, sixty-seven thousand, three hundred seventy-seven".

Divisors: 1 73 419740649 30641067377