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38185044850811 = 315171211569783
BaseRepresentation
bin10001010111010101001100…
…00010001011100001111011
312000012110021102121112220102
420223222212002023201323
520001110432440211221
6213113544544350015
711020531002603425
oct1053524602134173
9160173242545812
1038185044850811
1111192206377561
12434862631530b
13183caacbaac71
1496024783d815
154634322ad30b
hex22baa608b87b

38185044850811 has 4 divisors (see below), whose sum is σ = 38186256452112. Its totient is φ = 38183833249512.

The previous prime is 38185044850793. The next prime is 38185044850861. The reversal of 38185044850811 is 11805844058183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38185044850811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38185044850861) 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, 605753375 + ... + 605816408.

It is an arithmetic number, because the mean of its divisors is an integer number (9546564113028).

Almost surely, 238185044850811 is an apocalyptic number.

38185044850811 is a deficient number, since it is larger than the sum of its proper divisors (1211601301).

38185044850811 is a wasteful number, since it uses less digits than its factorization.

38185044850811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211601300.

The product of its (nonzero) digits is 4915200, while the sum is 56.

The spelling of 38185044850811 in words is "thirty-eight trillion, one hundred eighty-five billion, forty-four million, eight hundred fifty thousand, eight hundred eleven".

Divisors: 1 31517 1211569783 38185044850811