Search a number
-
+
9280427 = 131574547
BaseRepresentation
bin100011011001…
…101110101011
3122110111100112
4203121232223
54333433202
6530524535
7141611432
oct43315653
918414315
109280427
115269582
12313674b
131bcc1a0
141338119
15c34b52
hex8d9bab

9280427 has 8 divisors (see below), whose sum is σ = 10060176. Its totient is φ = 8510112.

The previous prime is 9280421. The next prime is 9280429. The reversal of 9280427 is 7240829.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-9280427 is a prime.

It is a super-2 number, since 2×92804272 = 172252650604658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9280393 and 9280402.

It is not an unprimeable number, because it can be changed into a prime (9280421) 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, 233 + ... + 4314.

It is an arithmetic number, because the mean of its divisors is an integer number (1257522).

Almost surely, 29280427 is an apocalyptic number.

9280427 is a deficient number, since it is larger than the sum of its proper divisors (779749).

9280427 is a wasteful number, since it uses less digits than its factorization.

9280427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 9280427 is about 3046.3793263479. The cubic root of 9280427 is about 210.1467379566.

The spelling of 9280427 in words is "nine million, two hundred eighty thousand, four hundred twenty-seven".

Divisors: 1 13 157 2041 4547 59111 713879 9280427