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2974189 = 14919961
BaseRepresentation
bin1011010110000111101101
312121002211011
423112013231
51230133224
6143425221
734165051
oct13260755
95532734
102974189
111751609
12bb5211
1380199a
14575c61
153db394
hex2d61ed

2974189 has 4 divisors (see below), whose sum is σ = 2994300. Its totient is φ = 2954080.

The previous prime is 2974187. The next prime is 2974193. The reversal of 2974189 is 9814792.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1605289 + 1368900 = 1267^2 + 1170^2 .

It is a cyclic number.

It is not a de Polignac number, because 2974189 - 21 = 2974187 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2974187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9832 + ... + 10129.

It is an arithmetic number, because the mean of its divisors is an integer number (748575).

22974189 is an apocalyptic number.

It is an amenable number.

2974189 is a deficient number, since it is larger than the sum of its proper divisors (20111).

2974189 is a wasteful number, since it uses less digits than its factorization.

2974189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20110.

The product of its digits is 36288, while the sum is 40.

The square root of 2974189 is about 1724.5837178867. The cubic root of 2974189 is about 143.8101439568.

It can be divided in two parts, 297418 and 9, that multiplied together give a palindrome (2676762).

The spelling of 2974189 in words is "two million, nine hundred seventy-four thousand, one hundred eighty-nine".

Divisors: 1 149 19961 2974189