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2883990 = 235251383
BaseRepresentation
bin1011000000000110010110
312102112002110
423000012112
51214241430
6141451450
733341064
oct13000626
95375073
102883990
11169a86a
12b70b86
1379c905
14551034
153be7b0
hex2c0196

2883990 has 32 divisors (see below), whose sum is σ = 6967296. Its totient is φ = 764000.

The previous prime is 2883989. The next prime is 2883997. The reversal of 2883990 is 993882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2883997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7339 + ... + 7721.

It is an arithmetic number, because the mean of its divisors is an integer number (217728).

22883990 is an apocalyptic number.

2883990 is an abundant number, since it is smaller than the sum of its proper divisors (4083306).

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

2883990 is a wasteful number, since it uses less digits than its factorization.

2883990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 2883990 is about 1698.2314329914. The cubic root of 2883990 is about 142.3414055841.

It can be divided in two parts, 288 and 3990, that added together give a triangular number (4278 = T92).

The spelling of 2883990 in words is "two million, eight hundred eighty-three thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 251 383 502 753 766 1149 1255 1506 1915 2298 2510 3765 3830 5745 7530 11490 96133 192266 288399 480665 576798 961330 1441995 2883990