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2016380 = 225412459
BaseRepresentation
bin111101100010001111100
310210102221202
413230101330
51004011010
6111115032
723065442
oct7542174
93712852
102016380
111157a33
12812a78
13557a32
143a6b92
1529c6a5
hex1ec47c

2016380 has 24 divisors (see below), whose sum is σ = 4339440. Its totient is φ = 786560.

The previous prime is 2016373. The next prime is 2016397. The reversal of 2016380 is 836102.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 410 + ... + 2049.

It is an arithmetic number, because the mean of its divisors is an integer number (180810).

22016380 is an apocalyptic number.

2016380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2016380 is an abundant number, since it is smaller than the sum of its proper divisors (2323060).

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

2016380 is a wasteful number, since it uses less digits than its factorization.

2016380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509 (or 2507 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2016380 is about 1419.9929577290. The cubic root of 2016380 is about 126.3351286788.

Adding to 2016380 its sum of digits (20), we get a square (2016400 = 14202).

The spelling of 2016380 in words is "two million, sixteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 2459 4918 9836 12295 24590 49180 100819 201638 403276 504095 1008190 2016380