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245137052 = 2261284263
BaseRepresentation
bin11101001110001…
…11111010011100
3122002021020211002
432213013322130
51000223341202
640154045432
76034426166
oct1647077234
9562236732
10245137052
11116412106
126a119878
133ba2c114
14247b1936
15167c3302
hexe9c7e9c

245137052 has 6 divisors (see below), whose sum is σ = 428989848. Its totient is φ = 122568524.

The previous prime is 245137049. The next prime is 245137063. The reversal of 245137052 is 250731542.

It is a happy number.

It is a super-4 number, since 4×2451370524 (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30642128 + ... + 30642135.

It is an arithmetic number, because the mean of its divisors is an integer number (71498308).

Almost surely, 2245137052 is an apocalyptic number.

It is an amenable number.

245137052 is a deficient number, since it is larger than the sum of its proper divisors (183852796).

245137052 is a wasteful number, since it uses less digits than its factorization.

245137052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61284267 (or 61284265 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 245137052 is about 15656.8531959650. The cubic root of 245137052 is about 625.8491302155.

Adding to 245137052 its reverse (250731542), we get a palindrome (495868594).

The spelling of 245137052 in words is "two hundred forty-five million, one hundred thirty-seven thousand, fifty-two".

Divisors: 1 2 4 61284263 122568526 245137052