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2442969 = 325212
BaseRepresentation
bin1001010100011011011001
311121010010100
421110123121
51111133334
6124210013
726523234
oct11243331
94533110
102442969
111419491
12999909
13676c59
1447841b
15333c99
hex2546d9

2442969 has 9 divisors (see below), whose sum is σ = 3535519. Its totient is φ = 1625520.

The previous prime is 2442967. The next prime is 2442971. The reversal of 2442969 is 9692442.

The square root of 2442969 is 1563.

It is a perfect power (a square), and thus also a powerful number.

2442969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2442967) and next prime (2442971).

It can be written as a sum of positive squares in only one way, i.e., 700569 + 1742400 = 837^2 + 1320^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2442969 - 21 = 2442967 is a prime.

It is a super-2 number, since 2×24429692 = 11936195069922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (2442967) 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 8 ways as a sum of consecutive naturals, for example, 4429 + ... + 4949.

22442969 is an apocalyptic number.

2442969 is the 1563-rd square number.

2442969 is the 782-nd centered octagonal number.

It is an amenable number.

2442969 is a deficient number, since it is larger than the sum of its proper divisors (1092550).

2442969 is an frugal number, since it uses more digits than its factorization.

2442969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 524 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The cubic root of 2442969 is about 134.6808923910.

Multiplying 2442969 by its sum of digits (36), we get a square (87946884 = 93782).

The spelling of 2442969 in words is "two million, four hundred forty-two thousand, nine hundred sixty-nine".

Divisors: 1 3 9 521 1563 4689 271441 814323 2442969