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2928725 = 52313779
BaseRepresentation
bin1011001011000001010101
312111210110022
423023001111
51222204400
6142434525
733615362
oct13130125
95453408
102928725
111720438
12b92a45
137b7097
14563469
153ccb85
hex2cb055

2928725 has 12 divisors (see below), whose sum is σ = 3749760. Its totient is φ = 2266800.

The previous prime is 2928719. The next prime is 2928749. The reversal of 2928725 is 5278292.

It is not a de Polignac number, because 2928725 - 214 = 2912341 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 24 + 93 + 212 + 82 + 77 + 221 + 55 .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1115 + ... + 2664.

It is an arithmetic number, because the mean of its divisors is an integer number (312480).

22928725 is an apocalyptic number.

2928725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2928725 is a deficient number, since it is larger than the sum of its proper divisors (821035).

2928725 is a wasteful number, since it uses less digits than its factorization.

2928725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820 (or 3815 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 2928725 is about 1711.3518048607. The cubic root of 2928725 is about 143.0736087368.

The spelling of 2928725 in words is "two million, nine hundred twenty-eight thousand, seven hundred twenty-five".

Divisors: 1 5 25 31 155 775 3779 18895 94475 117149 585745 2928725