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9120525431 = 79269429181
BaseRepresentation
bin10000111111010000…
…00010110001110111
3212112121212200211012
420133220002301313
5122134323303211
64105004302435
7442005121103
oct103750026167
925477780735
109120525431
113960331826
121926541a1b
13b2472c414
1462742a903
15385a87d8b
hex21fa02c77

9120525431 has 8 divisors (see below), whose sum is σ = 9270331200. Its totient is φ = 8971578720.

The previous prime is 9120525413. The next prime is 9120525437. The reversal of 9120525431 is 1345250219.

9120525431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9120525431 - 26 = 9120525367 is a prime.

It is a super-3 number, since 3×91205254313 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9120525437) 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, 193340 + ... + 235841.

It is an arithmetic number, because the mean of its divisors is an integer number (1158791400).

Almost surely, 29120525431 is an apocalyptic number.

9120525431 is a deficient number, since it is larger than the sum of its proper divisors (149805769).

9120525431 is a wasteful number, since it uses less digits than its factorization.

9120525431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429529.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 9120525431 is about 95501.4420362331. The cubic root of 9120525431 is about 2089.3279762881.

The spelling of 9120525431 in words is "nine billion, one hundred twenty million, five hundred twenty-five thousand, four hundred thirty-one".

Divisors: 1 79 269 21251 429181 33905299 115449689 9120525431