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68199 = 3127179
BaseRepresentation
bin10000101001100111
310110112220
4100221213
54140244
61243423
7402555
oct205147
9113486
1068199
114726a
1233573
1325071
141abd5
1515319
hex10a67

68199 has 8 divisors (see below), whose sum is σ = 92160. Its totient is φ = 44856.

The previous prime is 68171. The next prime is 68207. The reversal of 68199 is 99186.

It is a happy number.

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

It is not a de Polignac number, because 68199 - 27 = 68071 is a prime.

It is a super-2 number, since 2×681992 = 9302207202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68099) 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, 292 + ... + 470.

It is an arithmetic number, because the mean of its divisors is an integer number (11520).

268199 is an apocalyptic number.

68199 is a deficient number, since it is larger than the sum of its proper divisors (23961).

68199 is a wasteful number, since it uses less digits than its factorization.

68199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309.

The product of its digits is 3888, while the sum is 33.

The square root of 68199 is about 261.1493825380. The cubic root of 68199 is about 40.8563283873.

It can be divided in two parts, 681 and 99, that added together give a triangular number (780 = T39).

The spelling of 68199 in words is "sixty-eight thousand, one hundred ninety-nine".

Divisors: 1 3 127 179 381 537 22733 68199