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38387505243713 = 194783422411669
BaseRepresentation
bin10001011101001110010011…
…00111010010011001000001
312000220210212020120010221212
420232213021213102121001
520012420102320244323
6213350550525255505
711041256110545533
oct1056471147223101
9160823766503855
1038387505243713
111126005aa4a31a
12437b909a04595
131855c06b6c812
14969d725c1853
15468831737b78
hex22e9c99d2641

38387505243713 has 8 divisors (see below), whose sum is σ = 40416348585600. Its totient is φ = 36359506734768.

The previous prime is 38387505243697. The next prime is 38387505243719. The reversal of 38387505243713 is 31734250578383.

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 38387505243713 - 24 = 38387505243697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38387505243719) 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, 211114958 + ... + 211296711.

It is an arithmetic number, because the mean of its divisors is an integer number (5052043573200).

Almost surely, 238387505243713 is an apocalyptic number.

It is an amenable number.

38387505243713 is a deficient number, since it is larger than the sum of its proper divisors (2028843341887).

38387505243713 is a wasteful number, since it uses less digits than its factorization.

38387505243713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422416471.

The product of its (nonzero) digits is 50803200, while the sum is 59.

The spelling of 38387505243713 in words is "thirty-eight trillion, three hundred eighty-seven billion, five hundred five million, two hundred forty-three thousand, seven hundred thirteen".

Divisors: 1 19 4783 90877 422411669 8025821711 2020395012827 38387505243713