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2928985 = 51913067
BaseRepresentation
bin1011001011000101011001
312111210210221
423023011121
51222211420
6142440041
733616213
oct13130531
95453727
102928985
111720654
12b93021
137b7237
145635b3
153cccaa
hex2cb159

2928985 has 8 divisors (see below), whose sum is σ = 3534336. Its totient is φ = 2330160.

The previous prime is 2928967. The next prime is 2928997. The reversal of 2928985 is 5898292.

2928985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2928985 - 25 = 2928953 is a prime.

It is a Duffinian number.

2928985 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579 + ... + 2488.

It is an arithmetic number, because the mean of its divisors is an integer number (441792).

22928985 is an apocalyptic number.

It is an amenable number.

2928985 is a deficient number, since it is larger than the sum of its proper divisors (605351).

2928985 is a wasteful number, since it uses less digits than its factorization.

2928985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263.

The product of its digits is 103680, while the sum is 43.

The square root of 2928985 is about 1711.4277665154. The cubic root of 2928985 is about 143.0778424377.

The spelling of 2928985 in words is "two million, nine hundred twenty-eight thousand, nine hundred eighty-five".

Divisors: 1 5 191 955 3067 15335 585797 2928985