Search a number
-
+
2890270 = 25389743
BaseRepresentation
bin1011000001101000011110
312102211201001
423001220132
51214442040
6141540514
733365305
oct13015036
95384631
102890270
1116a4559
12b7473a
137a2726
1455343c
153c159a
hex2c1a1e

2890270 has 16 divisors (see below), whose sum is σ = 5222880. Its totient is φ = 1151584.

The previous prime is 2890267. The next prime is 2890271. The reversal of 2890270 is 720982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2890271) 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, 3519 + ... + 4261.

It is an arithmetic number, because the mean of its divisors is an integer number (326430).

22890270 is an apocalyptic number.

2890270 is a deficient number, since it is larger than the sum of its proper divisors (2332610).

2890270 is a wasteful number, since it uses less digits than its factorization.

2890270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2890270 is about 1700.0794099100. The cubic root of 2890270 is about 142.4446486576. Note that the first 3 decimals are identical.

It can be divided in two parts, 2890 and 270, that added together give a triangular number (3160 = T79).

The spelling of 2890270 in words is "two million, eight hundred ninety thousand, two hundred seventy".

Divisors: 1 2 5 10 389 743 778 1486 1945 3715 3890 7430 289027 578054 1445135 2890270