Search a number
-
+
2930445 = 33572443
BaseRepresentation
bin1011001011011100001101
312111212211000
423023130031
51222233240
6142450513
733623400
oct13133415
95455730
102930445
111721761
12b93a39
137b7abb
14563d37
153cd430
hex2cb70d

2930445 has 48 divisors (see below), whose sum is σ = 6073920. Its totient is φ = 1336608.

The previous prime is 2930419. The next prime is 2930449. The reversal of 2930445 is 5440392.

It is not a de Polignac number, because 2930445 - 25 = 2930413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2930449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6394 + ... + 6836.

It is an arithmetic number, because the mean of its divisors is an integer number (126540).

22930445 is an apocalyptic number.

It is an amenable number.

2930445 is an abundant number, since it is smaller than the sum of its proper divisors (3143475).

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

2930445 is a wasteful number, since it uses less digits than its factorization.

2930445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2930445 is about 1711.8542578152. The cubic root of 2930445 is about 143.1016116445.

It can be divided in two parts, 2930 and 445, that added together give a cube (3375 = 153).

The spelling of 2930445 in words is "two million, nine hundred thirty thousand, four hundred forty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 49 63 105 135 147 189 245 315 441 443 735 945 1323 1329 2205 2215 3101 3987 6615 6645 9303 11961 15505 19935 21707 27909 46515 59805 65121 83727 108535 139545 195363 325605 418635 586089 976815 2930445