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3442445 = 52923741
BaseRepresentation
bin1101001000011100001101
320110220010222
431020130031
51340124240
6201441125
741155166
oct15103415
96426128
103442445
111a413a6
1211a01a5
13936b66
1465876d
1547eeb5
hex34870d

3442445 has 8 divisors (see below), whose sum is σ = 4273560. Its totient is φ = 2658880.

The previous prime is 3442441. The next prime is 3442469. The reversal of 3442445 is 5442443.

It can be written as a sum of positive squares in 4 ways, for example, as 1408969 + 2033476 = 1187^2 + 1426^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3442445 - 22 = 3442441 is a prime.

It is a super-3 number, since 3×34424453 (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3442441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11726 + ... + 12015.

It is an arithmetic number, because the mean of its divisors is an integer number (534195).

Almost surely, 23442445 is an apocalyptic number.

It is an amenable number.

3442445 is a deficient number, since it is larger than the sum of its proper divisors (831115).

3442445 is a wasteful number, since it uses less digits than its factorization.

3442445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23775.

The product of its digits is 7680, while the sum is 26.

The square root of 3442445 is about 1855.3827098472. The cubic root of 3442445 is about 150.9926023012.

Adding to 3442445 its reverse (5442443), we get a palindrome (8884888).

The spelling of 3442445 in words is "three million, four hundred forty-two thousand, four hundred forty-five".

Divisors: 1 5 29 145 23741 118705 688489 3442445