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4892947 = 31157837
BaseRepresentation
bin10010101010100100010011
3100012120212021
4102222210103
52223033242
6252512311
756406103
oct22524423
910176767
104892947
112842164
12177b697
131024147
14915203
15669b67
hex4aa913

4892947 has 4 divisors (see below), whose sum is σ = 5050816. Its totient is φ = 4735080.

The previous prime is 4892941. The next prime is 4892977. The reversal of 4892947 is 7492984.

4892947 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4892947 - 27 = 4892819 is a prime.

It is a Duffinian number.

4892947 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4892941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78888 + ... + 78949.

It is an arithmetic number, because the mean of its divisors is an integer number (1262704).

Almost surely, 24892947 is an apocalyptic number.

4892947 is a deficient number, since it is larger than the sum of its proper divisors (157869).

4892947 is a wasteful number, since it uses less digits than its factorization.

4892947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157868.

The product of its digits is 145152, while the sum is 43.

The square root of 4892947 is about 2212.0006781192. Note that the first 3 decimals coincide. The cubic root of 4892947 is about 169.7683927919.

The spelling of 4892947 in words is "four million, eight hundred ninety-two thousand, nine hundred forty-seven".

Divisors: 1 31 157837 4892947