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9180130969 = 958132
BaseRepresentation
bin10001000110010110…
…11010111010011001
3212200210000222020201
420203023122322121
5122300103142334
64114534022201
7443330553142
oct104313327231
925623028221
109180130969
113990a432a9
1219424a7961
13b33b9b979
14631304ac9
1538ae0dc14
hex2232dae99

9180130969 has 3 divisors (see below), whose sum is σ = 9180226783. Its totient is φ = 9180035156.

The previous prime is 9180130943. The next prime is 9180130979. The reversal of 9180130969 is 9690310819.

The square root of 9180130969 is 95813.

It is a perfect power (a square), and thus also a powerful number.

9180130969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 454329225 + 8725801744 = 21315^2 + 93412^2 .

It is not a de Polignac number, because 9180130969 - 25 = 9180130937 is a prime.

It is a super-2 number, since 2×91801309692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9180130909) 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 2 ways as a sum of consecutive naturals, for example, 47907 + ... + 143719.

Almost surely, 29180130969 is an apocalyptic number.

9180130969 is the 95813-rd square number.

9180130969 is the 47907-th centered octagonal number.

It is an amenable number.

9180130969 is a deficient number, since it is larger than the sum of its proper divisors (95814).

9180130969 is an frugal number, since it uses more digits than its factorization.

9180130969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191626 (or 95813 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 46.

The cubic root of 9180130969 is about 2093.8695715671.

Multiplying 9180130969 by its product of nonzero digits (104976), we get a square (963693428601744 = 310434122).

The spelling of 9180130969 in words is "nine billion, one hundred eighty million, one hundred thirty thousand, nine hundred sixty-nine".

Divisors: 1 95813 9180130969