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2842900 = 225228429
BaseRepresentation
bin1010110110000100010100
312100102201121
422312010110
51211433100
6140533324
733110224
oct12660424
95312647
102842900
111671a05
12b51244
13786cb8
14540084
153b251a
hex2b6114

2842900 has 18 divisors (see below), whose sum is σ = 6169310. Its totient is φ = 1137120.

The previous prime is 2842897. The next prime is 2842901. The reversal of 2842900 is 92482.

It can be written as a sum of positive squares in 3 ways, for example, as 80656 + 2762244 = 284^2 + 1662^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2842901) 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, 14115 + ... + 14314.

22842900 is an apocalyptic number.

2842900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2842900 is an abundant number, since it is smaller than the sum of its proper divisors (3326410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2842900 is a wasteful number, since it uses less digits than its factorization.

2842900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28443 (or 28436 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2842900 is about 1686.0901518009. The cubic root of 2842900 is about 141.6621605641.

The spelling of 2842900 in words is "two million, eight hundred forty-two thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 28429 56858 113716 142145 284290 568580 710725 1421450 2842900