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101985195 = 35133116871
BaseRepresentation
bin1100001010000…
…10101110101011
321002220101101110
412011002232223
5202102011240
614041521403
72345600634
oct605025653
9232811343
10101985195
1152627a94
122a1a3263
131818a290
14d78a88b
158e47c80
hex6142bab

101985195 has 32 divisors (see below), whose sum is σ = 181407744. Its totient is φ = 48585600.

The previous prime is 101985187. The next prime is 101985211. The reversal of 101985195 is 591589101.

It is not a de Polignac number, because 101985195 - 23 = 101985187 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2391 + ... + 14480.

It is an arithmetic number, because the mean of its divisors is an integer number (5668992).

Almost surely, 2101985195 is an apocalyptic number.

101985195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

101985195 is a deficient number, since it is larger than the sum of its proper divisors (79422549).

101985195 is a wasteful number, since it uses less digits than its factorization.

101985195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16923.

The product of its (nonzero) digits is 16200, while the sum is 39.

The square root of 101985195 is about 10098.7719550448. The cubic root of 101985195 is about 467.2102659160.

The spelling of 101985195 in words is "one hundred one million, nine hundred eighty-five thousand, one hundred ninety-five".

Divisors: 1 3 5 13 15 31 39 65 93 155 195 403 465 1209 2015 6045 16871 50613 84355 219323 253065 523001 657969 1096615 1569003 2615005 3289845 6799013 7845015 20397039 33995065 101985195