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195000195 = 35131019901
BaseRepresentation
bin10111001111101…
…11011110000011
3111120221000222110
423213313132003
5344410001240
631203310403
74555321455
oct1347673603
9446830873
10195000195
11a0088595
125537b403
1331526640
141bc802d5
15121bcc80
hexb9f7783

195000195 has 32 divisors (see below), whose sum is σ = 339361344. Its totient is φ = 95040000.

The previous prime is 195000193. The next prime is 195000241. The reversal of 195000195 is 591000591.

It is not a de Polignac number, because 195000195 - 21 = 195000193 is a prime.

It is a super-4 number, since 4×1950001954 (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (195000193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14745 + ... + 24645.

It is an arithmetic number, because the mean of its divisors is an integer number (10605042).

Almost surely, 2195000195 is an apocalyptic number.

195000195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

195000195 is a deficient number, since it is larger than the sum of its proper divisors (144361149).

195000195 is a wasteful number, since it uses less digits than its factorization.

195000195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10023.

The product of its (nonzero) digits is 2025, while the sum is 30.

The square root of 195000195 is about 13964.2470258872. The cubic root of 195000195 is about 579.8891930612.

The spelling of 195000195 in words is "one hundred ninety-five million, one hundred ninety-five", and thus it is an aban number.

Divisors: 1 3 5 13 15 39 65 101 195 303 505 1313 1515 3939 6565 9901 19695 29703 49505 128713 148515 386139 643565 1000001 1930695 3000003 5000005 13000013 15000015 39000039 65000065 195000195