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52397632393 = 107489697499
BaseRepresentation
bin110000110011001001…
…000110101110001001
312000020200101111221121
4300303021012232021
51324302243214033
640023211035241
73533314345441
oct606311065611
9160220344847
1052397632393
1120249108827
12a1a3a3bb21
134c30709b12
142770d35121
15156a0ee62d
hexc33246b89

52397632393 has 4 divisors (see below), whose sum is σ = 52887330000. Its totient is φ = 51907934788.

The previous prime is 52397632381. The next prime is 52397632409. The reversal of 52397632393 is 39323679325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52397632393 - 229 = 51860761481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52397632393.

It is not an unprimeable number, because it can be changed into a prime (52397632093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244848643 + ... + 244848856.

It is an arithmetic number, because the mean of its divisors is an integer number (13221832500).

Almost surely, 252397632393 is an apocalyptic number.

It is an amenable number.

52397632393 is a deficient number, since it is larger than the sum of its proper divisors (489697607).

52397632393 is a wasteful number, since it uses less digits than its factorization.

52397632393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489697606.

The product of its digits is 5511240, while the sum is 52.

The spelling of 52397632393 in words is "fifty-two billion, three hundred ninety-seven million, six hundred thirty-two thousand, three hundred ninety-three".

Divisors: 1 107 489697499 52397632393