Search a number
-
+
2894740 = 225144737
BaseRepresentation
bin1011000010101110010100
312110001211121
423002232110
51220112430
6142013324
733414322
oct13025624
95401747
102894740
1116a7952
12b77244
137a4784
14554d12
153c2a7a
hex2c2b94

2894740 has 12 divisors (see below), whose sum is σ = 6078996. Its totient is φ = 1157888.

The previous prime is 2894737. The next prime is 2894747. The reversal of 2894740 is 474982.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 498436 + 2396304 = 706^2 + 1548^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2894696 and 2894705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2894747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72349 + ... + 72388.

It is an arithmetic number, because the mean of its divisors is an integer number (506583).

22894740 is an apocalyptic number.

2894740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2894740 is an abundant number, since it is smaller than the sum of its proper divisors (3184256).

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

2894740 is a wasteful number, since it uses less digits than its factorization.

2894740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144746 (or 144744 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2894740 is about 1701.3935464789. The cubic root of 2894740 is about 142.5180442935.

The spelling of 2894740 in words is "two million, eight hundred ninety-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 144737 289474 578948 723685 1447370 2894740