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245242132 = 22604710139
BaseRepresentation
bin11101001111000…
…01100100010100
3122002110120221221
432213201210110
51000240222012
640200220124
76035344432
oct1647414424
9562416857
10245242132
11116484053
126a16a644
133ba67bb5
14247dbd52
15167e4507
hexe9e1914

245242132 has 12 divisors (see below), whose sum is σ = 429287040. Its totient is φ = 122588696.

The previous prime is 245242121. The next prime is 245242141. The reversal of 245242132 is 231242542.

It is a junction number, because it is equal to n+sod(n) for n = 245242097 and 245242106.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 19119 + ... + 29257.

It is an arithmetic number, because the mean of its divisors is an integer number (35773920).

Almost surely, 2245242132 is an apocalyptic number.

It is an amenable number.

245242132 is a deficient number, since it is larger than the sum of its proper divisors (184044908).

245242132 is a wasteful number, since it uses less digits than its factorization.

245242132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16190 (or 16188 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 245242132 is about 15660.2085554440. The cubic root of 245242132 is about 625.9385425551.

Adding to 245242132 its reverse (231242542), we get a palindrome (476484674).

The spelling of 245242132 in words is "two hundred forty-five million, two hundred forty-two thousand, one hundred thirty-two".

Divisors: 1 2 4 6047 10139 12094 20278 24188 40556 61310533 122621066 245242132