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199000386 = 232131794751
BaseRepresentation
bin10111101110010…
…00000101000010
3111212110021012200
423313020011002
5401421003021
631425134030
74634322024
oct1367100502
9455407180
10199000386
11a236aa32
125678a316
13322c7310
141c602014
151270d126
hexbdc8142

199000386 has 48 divisors (see below), whose sum is σ = 467026560. Its totient is φ = 60876000.

The previous prime is 199000337. The next prime is 199000387. The reversal of 199000386 is 683000991.

It is a self number, because there is not a number n which added to its sum of digits gives 199000386.

It is not an unprimeable number, because it can be changed into a prime (199000387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39511 + ... + 44261.

It is an arithmetic number, because the mean of its divisors is an integer number (9729720).

Almost surely, 2199000386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199000386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233513280).

199000386 is an abundant number, since it is smaller than the sum of its proper divisors (268026174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199000386 is a wasteful number, since it uses less digits than its factorization.

199000386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4951 (or 4948 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 199000386 is about 14106.7496610665. The cubic root of 199000386 is about 583.8276235641.

The spelling of 199000386 in words is "one hundred ninety-nine million, three hundred eighty-six", and thus it is an aban number.

Divisors: 1 2 3 6 9 13 18 26 39 78 117 179 234 358 537 1074 1611 2327 3222 4654 4751 6981 9502 13962 14253 20943 28506 41886 42759 61763 85518 123526 185289 370578 555867 850429 1111734 1700858 2551287 5102574 7653861 11055577 15307722 22111154 33166731 66333462 99500193 199000386