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9131241 = 37434821
BaseRepresentation
bin100010110101…
…010011101001
3122011220201010
4202311103221
54314144431
6523414133
7140420460
oct42652351
918156633
109131241
115177489
123084349
131b79302
1412d99d7
15c05846
hex8b54e9

9131241 has 8 divisors (see below), whose sum is σ = 13914304. Its totient is φ = 5217840.

The previous prime is 9131237. The next prime is 9131263. The reversal of 9131241 is 1421319.

9131241 is digitally balanced in base 2 and base 3, because in such bases 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 not a de Polignac number, because 9131241 - 22 = 9131237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 434821 = 9131241 / (9 + 1 + 3 + 1 + 2 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9131231) 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, 217390 + ... + 217431.

It is an arithmetic number, because the mean of its divisors is an integer number (1739288).

Almost surely, 29131241 is an apocalyptic number.

It is an amenable number.

9131241 is a deficient number, since it is larger than the sum of its proper divisors (4783063).

9131241 is a wasteful number, since it uses less digits than its factorization.

9131241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434831.

The product of its digits is 216, while the sum is 21.

The square root of 9131241 is about 3021.7943344973. The cubic root of 9131241 is about 209.0145896121.

The spelling of 9131241 in words is "nine million, one hundred thirty-one thousand, two hundred forty-one".

Divisors: 1 3 7 21 434821 1304463 3043747 9131241