Search a number
-
+
2684290 = 257311237
BaseRepresentation
bin1010001111010110000010
312001101011011
422033112002
51141344130
6133311134
731546630
oct12172602
95041134
102684290
111573824
12a954aa
1372ca4b
144dc350
1538052a
hex28f582

2684290 has 32 divisors (see below), whose sum is σ = 5704704. Its totient is φ = 889920.

The previous prime is 2684287. The next prime is 2684293. The reversal of 2684290 is 924862.

It is an interprime number because it is at equal distance from previous prime (2684287) and next prime (2684293).

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (2684293) 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, 1552 + ... + 2788.

It is an arithmetic number, because the mean of its divisors is an integer number (178272).

22684290 is an apocalyptic number.

2684290 is an abundant number, since it is smaller than the sum of its proper divisors (3020414).

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

2684290 is a wasteful number, since it uses less digits than its factorization.

2684290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 2684290 is about 1638.3802977331. The cubic root of 2684290 is about 138.9770677970.

The spelling of 2684290 in words is "two million, six hundred eighty-four thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 31 35 62 70 155 217 310 434 1085 1237 2170 2474 6185 8659 12370 17318 38347 43295 76694 86590 191735 268429 383470 536858 1342145 2684290