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4890155 = 5978031
BaseRepresentation
bin10010101001111000101011
3100012110000212
4102221320223
52222441110
6252451335
756365004
oct22517053
910173025
104890155
112840056
121779b4b
131022aaa
149141ab
15668e05
hex4a9e2b

4890155 has 4 divisors (see below), whose sum is σ = 5868192. Its totient is φ = 3912120.

The previous prime is 4890143. The next prime is 4890161. The reversal of 4890155 is 5510984.

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

It is not a de Polignac number, because 4890155 - 24 = 4890139 is a prime.

It is a Duffinian 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, 489011 + ... + 489020.

It is an arithmetic number, because the mean of its divisors is an integer number (1467048).

Almost surely, 24890155 is an apocalyptic number.

4890155 is a deficient number, since it is larger than the sum of its proper divisors (978037).

4890155 is an equidigital number, since it uses as much as digits as its factorization.

4890155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978036.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 4890155 is about 2211.3694851833. The cubic root of 4890155 is about 169.7360957231.

The spelling of 4890155 in words is "four million, eight hundred ninety thousand, one hundred fifty-five".

Divisors: 1 5 978031 4890155