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53012120330 = 25131187343543
BaseRepresentation
bin110001010111110001…
…001100001100001010
312001211111122201221002
4301113301030030022
51332032100322310
640204201415002
73554455405451
oct612761141412
9161744581832
1053012120330
1120533a616a4
12a33579a462
134ccab08c50
1427cc7adb98
1515a402eda5
hexc57c4c30a

53012120330 has 32 divisors (see below), whose sum is σ = 102848828544. Its totient is φ = 19557158976.

The previous prime is 53012120327. The next prime is 53012120347. The reversal of 53012120330 is 3302121035.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17462 + ... + 326081.

It is an arithmetic number, because the mean of its divisors is an integer number (3214025892).

Almost surely, 253012120330 is an apocalyptic number.

53012120330 is a deficient number, since it is larger than the sum of its proper divisors (49836708214).

53012120330 is a wasteful number, since it uses less digits than its factorization.

53012120330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344750.

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 53012120330 its reverse (3302121035), we get a palindrome (56314241365).

The spelling of 53012120330 in words is "fifty-three billion, twelve million, one hundred twenty thousand, three hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 1187 2374 5935 11870 15431 30862 77155 154310 343543 687086 1717715 3435430 4466059 8932118 22330295 44660590 407785541 815571082 2038927705 4077855410 5301212033 10602424066 26506060165 53012120330