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4902909 = 311148573
BaseRepresentation
bin10010101100111111111101
3100020002112020
4102230333331
52223343114
6253030353
756450124
oct22547775
910202466
104902909
1128496a0
1217853b9
13102883b
14918abb
1566caa9
hex4acffd

4902909 has 8 divisors (see below), whose sum is σ = 7131552. Its totient is φ = 2971440.

The previous prime is 4902901. The next prime is 4902913. The reversal of 4902909 is 9092094.

It is a happy number.

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

It is not a de Polignac number, because 4902909 - 23 = 4902901 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 148573 = 4902909 / (4 + 9 + 0 + 2 + 9 + 0 + 9).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4902909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4902901) 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, 74254 + ... + 74319.

It is an arithmetic number, because the mean of its divisors is an integer number (891444).

Almost surely, 24902909 is an apocalyptic number.

It is an amenable number.

4902909 is a deficient number, since it is larger than the sum of its proper divisors (2228643).

4902909 is a wasteful number, since it uses less digits than its factorization.

4902909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148587.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 4902909 is about 2214.2513407470. The cubic root of 4902909 is about 169.8835303730.

The spelling of 4902909 in words is "four million, nine hundred two thousand, nine hundred nine".

Divisors: 1 3 11 33 148573 445719 1634303 4902909