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9225381 = 311279557
BaseRepresentation
bin100011001100…
…010010100101
3122100200211210
4203030102211
54330203011
6525422033
7141262104
oct43142245
918320753
109225381
115231190
12310a919
131bb0109
14132203b
15c236a6
hex8cc4a5

9225381 has 8 divisors (see below), whose sum is σ = 13418784. Its totient is φ = 5591120.

The previous prime is 9225371. The next prime is 9225397. The reversal of 9225381 is 1835229.

It is a happy number.

9225381 is digitally balanced in base 3, 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 9225381 - 213 = 9217189 is a prime.

It is a super-2 number, since 2×92253812 = 170215309190322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9225331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139746 + ... + 139811.

It is an arithmetic number, because the mean of its divisors is an integer number (1677348).

Almost surely, 29225381 is an apocalyptic number.

It is an amenable number.

9225381 is a deficient number, since it is larger than the sum of its proper divisors (4193403).

9225381 is a wasteful number, since it uses less digits than its factorization.

9225381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279571.

The product of its digits is 4320, while the sum is 30.

The square root of 9225381 is about 3037.3312298793. The cubic root of 9225381 is about 209.7304250725.

The spelling of 9225381 in words is "nine million, two hundred twenty-five thousand, three hundred eighty-one".

Divisors: 1 3 11 33 279557 838671 3075127 9225381