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2972825 = 52118913
BaseRepresentation
bin1011010101110010011001
312121000221122
423111302121
51230112300
6143415025
734161062
oct13256231
95530848
102972825
111750589
12bb4475
1380118b
14575569
153dac85
hex2d5c99

2972825 has 6 divisors (see below), whose sum is σ = 3686334. Its totient is φ = 2378240.

The previous prime is 2972821. The next prime is 2972831. The reversal of 2972825 is 5282792.

It can be written as a sum of positive squares in 3 ways, for example, as 4096 + 2968729 = 64^2 + 1723^2 .

It is not a de Polignac number, because 2972825 - 22 = 2972821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2972821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59432 + ... + 59481.

It is an arithmetic number, because the mean of its divisors is an integer number (614389).

22972825 is an apocalyptic number.

2972825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2972825 is a deficient number, since it is larger than the sum of its proper divisors (713509).

2972825 is a wasteful number, since it uses less digits than its factorization.

2972825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118923 (or 118918 counting only the distinct ones).

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

The square root of 2972825 is about 1724.1882147840. The cubic root of 2972825 is about 143.7881562227.

The spelling of 2972825 in words is "two million, nine hundred seventy-two thousand, eight hundred twenty-five".

Divisors: 1 5 25 118913 594565 2972825