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2985481 = 7340897
BaseRepresentation
bin1011011000111000001001
312121200022101
423120320021
51231013411
6143553401
734243012
oct13307011
95550271
102985481
11175a044
12bbb861
13806b75
1457a009
153de8c1
hex2d8e09

2985481 has 4 divisors (see below), whose sum is σ = 3026452. Its totient is φ = 2944512.

The previous prime is 2985467. The next prime is 2985491. The reversal of 2985481 is 1845892.

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 2202256 + 783225 = 1484^2 + 885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2985481 is a prime.

It is a super-2 number, since 2×29854812 = 17826193602722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2985481.

It is not an unprimeable number, because it can be changed into a prime (2985431) 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, 20376 + ... + 20521.

It is an arithmetic number, because the mean of its divisors is an integer number (756613).

22985481 is an apocalyptic number.

It is an amenable number.

2985481 is a deficient number, since it is larger than the sum of its proper divisors (40971).

2985481 is an equidigital number, since it uses as much as digits as its factorization.

2985481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40970.

The product of its digits is 23040, while the sum is 37.

The square root of 2985481 is about 1727.8544498886. The cubic root of 2985481 is about 143.9919137692.

The spelling of 2985481 in words is "two million, nine hundred eighty-five thousand, four hundred eighty-one".

Divisors: 1 73 40897 2985481