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9220497 = 3111321493
BaseRepresentation
bin100011001011…
…000110010001
3122100110010220
4203023012101
54330023442
6525343253
7141241626
oct43130621
918313126
109220497
115228550
123107b29
131baab20
14132034d
15c21eec
hex8cb191

9220497 has 16 divisors (see below), whose sum is σ = 14443968. Its totient is φ = 5158080.

The previous prime is 9220487. The next prime is 9220501. The reversal of 9220497 is 7940229.

It is not a de Polignac number, because 9220497 - 24 = 9220481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a d-powerful number, because it can be written as 9 + 213 + 223 + 0 + 43 + 92 + 77 .

9220497 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9220427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10318 + ... + 11175.

It is an arithmetic number, because the mean of its divisors is an integer number (902748).

Almost surely, 29220497 is an apocalyptic number.

It is an amenable number.

9220497 is a deficient number, since it is larger than the sum of its proper divisors (5223471).

9220497 is a wasteful number, since it uses less digits than its factorization.

9220497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21520.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 9220497 is about 3036.5271281515. The cubic root of 9220497 is about 209.6934074790.

The spelling of 9220497 in words is "nine million, two hundred twenty thousand, four hundred ninety-seven".

Divisors: 1 3 11 13 33 39 143 429 21493 64479 236423 279409 709269 838227 3073499 9220497