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53213532143 = 313184953897
BaseRepresentation
bin110001100011110001…
…100000111111101111
312002100112122111222212
4301203301200333233
51332440131012033
640240154401035
73562452363062
oct614361407757
9162315574885
1053213532143
1120627719342
12a39113017b
135030768a35
14280b43c8d9
1515b6a67748
hexc63c60fef

53213532143 has 8 divisors (see below), whose sum is σ = 54932841600. Its totient is φ = 51494394240.

The previous prime is 53213532133. The next prime is 53213532157. The reversal of 53213532143 is 34123531235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53213532143 - 26 = 53213532079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53213532133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960371 + ... + 1014267.

It is an arithmetic number, because the mean of its divisors is an integer number (6866605200).

Almost surely, 253213532143 is an apocalyptic number.

53213532143 is a deficient number, since it is larger than the sum of its proper divisors (1719309457).

53213532143 is a wasteful number, since it uses less digits than its factorization.

53213532143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85777.

The product of its digits is 32400, while the sum is 32.

The spelling of 53213532143 in words is "fifty-three billion, two hundred thirteen million, five hundred thirty-two thousand, one hundred forty-three".

Divisors: 1 31 31849 53897 987319 1670807 1716565553 53213532143