Search a number
-
+
2947400 = 235214737
BaseRepresentation
bin1011001111100101001000
312112202001222
423033211020
51223304100
6143101212
734024001
oct13174510
95482058
102947400
111733475
12ba1808
137c2731
1456a1a8
153d3485
hex2cf948

2947400 has 24 divisors (see below), whose sum is σ = 6853170. Its totient is φ = 1178880.

The previous prime is 2947363. The next prime is 2947403. The reversal of 2947400 is 47492.

2947400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2617924 + 329476 = 1618^2 + 574^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2947400.

It is not an unprimeable number, because it can be changed into a prime (2947403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7169 + ... + 7568.

22947400 is an apocalyptic number.

2947400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2947400 is an abundant number, since it is smaller than the sum of its proper divisors (3905770).

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

2947400 is a wasteful number, since it uses less digits than its factorization.

2947400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14753 (or 14744 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2947400 is about 1716.7993476234. The cubic root of 2947400 is about 143.3770673588.

The spelling of 2947400 in words is "two million, nine hundred forty-seven thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 14737 29474 58948 73685 117896 147370 294740 368425 589480 736850 1473700 2947400