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24220025 = 52968801
BaseRepresentation
bin101110001100…
…1000101111001
31200120111121222
41130121011321
522200020100
62223041425
7412603214
oct134310571
950514558
1024220025
1112742955
128140275
13503019b
14330677b
1521d6485
hex1719179

24220025 has 6 divisors (see below), whose sum is σ = 30032862. Its totient is φ = 19376000.

The previous prime is 24219997. The next prime is 24220037. The reversal of 24220025 is 52002242.

It can be written as a sum of positive squares in 3 ways, for example, as 141376 + 24078649 = 376^2 + 4907^2 .

It is not a de Polignac number, because 24220025 - 26 = 24219961 is a prime.

It is a super-2 number, since 2×242200252 = 1173219222001250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24219985 and 24220012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 484376 + ... + 484425.

It is an arithmetic number, because the mean of its divisors is an integer number (5005477).

Almost surely, 224220025 is an apocalyptic number.

24220025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

24220025 is a deficient number, since it is larger than the sum of its proper divisors (5812837).

24220025 is an equidigital number, since it uses as much as digits as its factorization.

24220025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968811 (or 968806 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 24220025 is about 4921.3844596821. The cubic root of 24220025 is about 289.3287088897.

Adding to 24220025 its reverse (52002242), we get a palindrome (76222267).

The spelling of 24220025 in words is "twenty-four million, two hundred twenty thousand, twenty-five".

Divisors: 1 5 25 968801 4844005 24220025