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2873808 = 243272851
BaseRepresentation
bin1010111101100111010000
312102000010100
422331213100
51213430213
6141332400
733266310
oct12754720
95360110
102873808
111693153
12b67100
137980a2
1454b440
153bb773
hex2bd9d0

2873808 has 60 divisors (see below), whose sum is σ = 9194848. Its totient is φ = 820800.

The previous prime is 2873797. The next prime is 2873809. The reversal of 2873808 is 8083782.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2873809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418 + ... + 2433.

22873808 is an apocalyptic number.

2873808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2873808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4597424).

2873808 is an abundant number, since it is smaller than the sum of its proper divisors (6321040).

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

2873808 is a wasteful number, since it uses less digits than its factorization.

2873808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872 (or 2863 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2873808 is about 1695.2309577164. The cubic root of 2873808 is about 142.1736947431.

It can be divided in two parts, 287 and 3808, that added together give a triangular number (4095 = T90).

The spelling of 2873808 in words is "two million, eight hundred seventy-three thousand, eight hundred eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 2851 5702 8553 11404 17106 19957 22808 25659 34212 39914 45616 51318 59871 68424 79828 102636 119742 136848 159656 179613 205272 239484 319312 359226 410544 478968 718452 957936 1436904 2873808