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53015443033 = 721081947817
BaseRepresentation
bin110001010111111101…
…110111011001011001
312001211201220112211011
4301113331313121121
51332033423134113
640204400533521
73554525554600
oct612775673131
9161751815734
1053015443033
1120535921033
12a3369212a1
134ccb700447
1427ccdd6a37
1515a448963d
hexc57f77659

53015443033 has 6 divisors (see below), whose sum is σ = 61671025626. Its totient is φ = 45441808272.

The previous prime is 53015443027. The next prime is 53015443037. The reversal of 53015443033 is 33034451035.

It can be written as a sum of positive squares in only one way, i.e., 43196218569 + 9819224464 = 207837^2 + 99092^2 .

It is not a de Polignac number, because 53015443033 - 25 = 53015443001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53015442986 and 53015443004.

It is not an unprimeable number, because it can be changed into a prime (53015443037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 540973860 + ... + 540973957.

It is an arithmetic number, because the mean of its divisors is an integer number (10278504271).

Almost surely, 253015443033 is an apocalyptic number.

It is an amenable number.

53015443033 is a deficient number, since it is larger than the sum of its proper divisors (8655582593).

53015443033 is a wasteful number, since it uses less digits than its factorization.

53015443033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081947831 (or 1081947824 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 53015443033 its reverse (33034451035), we get a palindrome (86049894068).

The spelling of 53015443033 in words is "fifty-three billion, fifteen million, four hundred forty-three thousand, thirty-three".

Divisors: 1 7 49 1081947817 7573634719 53015443033