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2868880 = 245747109
BaseRepresentation
bin1010111100011010010000
312101202100211
422330122100
51213301010
6141253504
733246040
oct12743220
95352324
102868880
11168a483
12b64294
13795a81
14549720
153ba08a
hex2bc690

2868880 has 80 divisors (see below), whose sum is σ = 7856640. Its totient is φ = 953856.

The previous prime is 2868871. The next prime is 2868919. The reversal of 2868880 is 888682.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26266 + ... + 26374.

It is an arithmetic number, because the mean of its divisors is an integer number (98208).

22868880 is an apocalyptic number.

2868880 is a gapful number since it is divisible by the number (20) 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 2868880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3928320).

2868880 is an abundant number, since it is smaller than the sum of its proper divisors (4987760).

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

2868880 is a wasteful number, since it uses less digits than its factorization.

2868880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 2868880 is about 1693.7768448057. The cubic root of 2868880 is about 142.0923818613.

The spelling of 2868880 in words is "two million, eight hundred sixty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 47 56 70 80 94 109 112 140 188 218 235 280 329 376 436 470 545 560 658 752 763 872 940 1090 1316 1526 1645 1744 1880 2180 2632 3052 3290 3760 3815 4360 5123 5264 6104 6580 7630 8720 10246 12208 13160 15260 20492 25615 26320 30520 35861 40984 51230 61040 71722 81968 102460 143444 179305 204920 286888 358610 409840 573776 717220 1434440 2868880