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30441025 = 529712553
BaseRepresentation
bin111010000011…
…1111001000001
32010021120020101
41310013321001
530243103100
63004242401
7516513226
oct164077101
963246211
1030441025
111620187a
12a240401
1363ca954
14408594d
152a1486a
hex1d07e41

30441025 has 12 divisors (see below), whose sum is σ = 38139052. Its totient is φ = 24099840.

The previous prime is 30441017. The next prime is 30441041. The reversal of 30441025 is 52014403.

It can be written as a sum of positive squares in 6 ways, for example, as 1183744 + 29257281 = 1088^2 + 5409^2 .

It is not a de Polignac number, because 30441025 - 23 = 30441017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30440993 and 30441011.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3852 + ... + 8701.

Almost surely, 230441025 is an apocalyptic number.

It is an amenable number.

30441025 is a deficient number, since it is larger than the sum of its proper divisors (7698027).

30441025 is a wasteful number, since it uses less digits than its factorization.

30441025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12660 (or 12655 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 30441025 is about 5517.3385794240. The cubic root of 30441025 is about 312.2384798708.

Adding to 30441025 its reverse (52014403), we get a palindrome (82455428).

The spelling of 30441025 in words is "thirty million, four hundred forty-one thousand, twenty-five".

Divisors: 1 5 25 97 485 2425 12553 62765 313825 1217641 6088205 30441025