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245543053 = 7176433209
BaseRepresentation
bin11101010001010…
…11000010001101
3122010000212202011
432220223002031
51000324334203
640210501221
76041036650
oct1650530215
9563025664
10245543053
1111666a148
126a294811
133bb41b62
1424879897
151685376d
hexea2b08d

245543053 has 16 divisors (see below), whose sum is σ = 297682560. Its totient is φ = 197715456.

The previous prime is 245543047. The next prime is 245543057. The reversal of 245543053 is 350345542.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 245543053 - 29 = 245542541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245543057) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 74913 + ... + 78121.

It is an arithmetic number, because the mean of its divisors is an integer number (18605160).

Almost surely, 2245543053 is an apocalyptic number.

It is an amenable number.

245543053 is a deficient number, since it is larger than the sum of its proper divisors (52139507).

245543053 is a wasteful number, since it uses less digits than its factorization.

245543053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3876.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 245543053 is about 15669.8134322014. The cubic root of 245543053 is about 626.1944543519.

Adding to 245543053 its reverse (350345542), we get a palindrome (595888595).

The spelling of 245543053 in words is "two hundred forty-five million, five hundred forty-three thousand, fifty-three".

Divisors: 1 7 17 119 643 3209 4501 10931 22463 54553 76517 381871 2063387 14443709 35077579 245543053