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2868720 = 243511953
BaseRepresentation
bin1010111100010111110000
312101202010220
422330113300
51213244340
6141253040
733245421
oct12742760
95352126
102868720
11168a348
12b64180
1379598a
14549648
153b9ed0
hex2bc5f0

2868720 has 40 divisors (see below), whose sum is σ = 8893776. Its totient is φ = 764928.

The previous prime is 2868713. The next prime is 2868773. The reversal of 2868720 is 278682.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5737 + ... + 6216.

22868720 is an apocalyptic number.

2868720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2868720 is an abundant number, since it is smaller than the sum of its proper divisors (6025056).

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

2868720 is a wasteful number, since it uses less digits than its factorization.

2868720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11969 (or 11963 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 2868720 is about 1693.7296124234. The cubic root of 2868720 is about 142.0897402725.

The spelling of 2868720 in words is "two million, eight hundred sixty-eight thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 11953 23906 35859 47812 59765 71718 95624 119530 143436 179295 191248 239060 286872 358590 478120 573744 717180 956240 1434360 2868720