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2678872 = 23747837
BaseRepresentation
bin1010001110000001011000
312001002201111
422032001120
51141210442
6133230104
731525060
oct12160130
95032644
102678872
11156a749
12a92334
1372a441
144da3a0
1537db17
hex28e058

2678872 has 16 divisors (see below), whose sum is σ = 5740560. Its totient is φ = 1148064.

The previous prime is 2678839. The next prime is 2678873. The reversal of 2678872 is 2788762.

It is a d-powerful number, because it can be written as 219 + 67 + 74 + 82 + 82 + 77 + 220 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23863 + ... + 23974.

It is an arithmetic number, because the mean of its divisors is an integer number (358785).

22678872 is an apocalyptic number.

It is an amenable number.

2678872 is an abundant number, since it is smaller than the sum of its proper divisors (3061688).

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

2678872 is a wasteful number, since it uses less digits than its factorization.

2678872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47850 (or 47846 counting only the distinct ones).

The product of its digits is 75264, while the sum is 40.

The square root of 2678872 is about 1636.7260002823. The cubic root of 2678872 is about 138.8835005435.

The spelling of 2678872 in words is "two million, six hundred seventy-eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 47837 95674 191348 334859 382696 669718 1339436 2678872