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34430025 = 352765581
BaseRepresentation
bin1000001101010…
…1110001001001
32101210020010010
42003111301021
532303230100
63225542133
7565436040
oct203256111
971706103
1034430025
1118486873
12b644949
1371964c6
144803557
153051750
hex20d5c49

34430025 has 24 divisors (see below), whose sum is σ = 65057344. Its totient is φ = 15739200.

The previous prime is 34430023. The next prime is 34430051. The reversal of 34430025 is 52003443.

It is a happy number.

It is not a de Polignac number, because 34430025 - 21 = 34430023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34429983 and 34430010.

It is not an unprimeable number, because it can be changed into a prime (34430021) 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 23 ways as a sum of consecutive naturals, for example, 32266 + ... + 33315.

Almost surely, 234430025 is an apocalyptic number.

34430025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

34430025 is a deficient number, since it is larger than the sum of its proper divisors (30627319).

34430025 is a wasteful number, since it uses less digits than its factorization.

34430025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65601 (or 65596 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 34430025 is about 5867.7103711755. The cubic root of 34430025 is about 325.3212602411.

Adding to 34430025 its reverse (52003443), we get a palindrome (86433468).

The spelling of 34430025 in words is "thirty-four million, four hundred thirty thousand, twenty-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 525 65581 196743 327905 459067 983715 1377201 1639525 2295335 4918575 6886005 11476675 34430025