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9149005 = 51829801
BaseRepresentation
bin100010111001…
…101001001101
3122012211002001
4202321221031
54320232010
6524032301
7140523325
oct42715115
918184061
109149005
115189868
123092691
131b84418
141302285
15c0ac3a
hex8b9a4d

9149005 has 4 divisors (see below), whose sum is σ = 10978812. Its totient is φ = 7319200.

The previous prime is 9148991. The next prime is 9149011. The reversal of 9149005 is 5009419.

9149005 = 9522 + 9532 + ... + 9612.

9149005 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 semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5009419 = 10746817.

It can be written as a sum of positive squares in 2 ways, for example, as 6749604 + 2399401 = 2598^2 + 1549^2 .

It is not a de Polignac number, because 9149005 - 211 = 9146957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914896 + ... + 914905.

It is an arithmetic number, because the mean of its divisors is an integer number (2744703).

Almost surely, 29149005 is an apocalyptic number.

It is an amenable number.

9149005 is a deficient number, since it is larger than the sum of its proper divisors (1829807).

9149005 is a wasteful number, since it uses less digits than its factorization.

9149005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829806.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 9149005 is about 3024.7322195527. The cubic root of 9149005 is about 209.1500414469.

Adding to 9149005 its product of nonzero digits (1620), we get a 4-th power (9150625 = 554).

The spelling of 9149005 in words is "nine million, one hundred forty-nine thousand, five".

Divisors: 1 5 1829801 9149005