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2834780 = 2251310903
BaseRepresentation
bin1010110100000101011100
312100000120212
422310011130
51211203110
6140431552
733044444
oct12640534
95300525
102834780
1116668a3
12b485b8
137833b0
1453b124
153aee05
hex2b415c

2834780 has 24 divisors (see below), whose sum is σ = 6411552. Its totient is φ = 1046592.

The previous prime is 2834759. The next prime is 2834789. The reversal of 2834780 is 874382.

It is a d-powerful number, because it can be written as 219 + 85 + 311 + 45 + 74 + 87 + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2834789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5192 + ... + 5711.

It is an arithmetic number, because the mean of its divisors is an integer number (267148).

22834780 is an apocalyptic number.

2834780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2834780 is an abundant number, since it is smaller than the sum of its proper divisors (3576772).

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

2834780 is a wasteful number, since it uses less digits than its factorization.

2834780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10925 (or 10923 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 2834780 is about 1683.6804922550. The cubic root of 2834780 is about 141.5271583177.

The spelling of 2834780 in words is "two million, eight hundred thirty-four thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 10903 21806 43612 54515 109030 141739 218060 283478 566956 708695 1417390 2834780