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30522564769 = 197154936877
BaseRepresentation
bin11100011011010010…
…010110000010100001
32220210011120221110211
4130123102112002201
51000002234033034
622004420254121
72130243343204
oct343322260241
986704527424
1030522564769
1111a43212744
125ab9b41341
132b5571ab18
1416979d593b
15bd994cd64
hex71b4960a1

30522564769 has 4 divisors (see below), whose sum is σ = 30677501844. Its totient is φ = 30367627696.

The previous prime is 30522564767. The next prime is 30522564791. The reversal of 30522564769 is 96746522503.

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 21632526400 + 8890038369 = 147080^2 + 94287^2 .

It is a cyclic number.

It is not a de Polignac number, because 30522564769 - 21 = 30522564767 is a prime.

It is a super-2 number, since 2×305225647692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30522564767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77468242 + ... + 77468635.

It is an arithmetic number, because the mean of its divisors is an integer number (7669375461).

Almost surely, 230522564769 is an apocalyptic number.

It is an amenable number.

30522564769 is a deficient number, since it is larger than the sum of its proper divisors (154937075).

30522564769 is a wasteful number, since it uses less digits than its factorization.

30522564769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154937074.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 30522564769 in words is "thirty billion, five hundred twenty-two million, five hundred sixty-four thousand, seven hundred sixty-nine".

Divisors: 1 197 154936877 30522564769