Search a number
-
+
195470913 = 31117348433
BaseRepresentation
bin10111010011010…
…10011001000001
3111121210221200110
423221222121001
5400020032123
631221341533
74562322021
oct1351523101
9447727613
10195470913
11a037a210
12555678a9
133165c981
141bd63a81
1512262493
hexba6a641

195470913 has 16 divisors (see below), whose sum is σ = 301046976. Its totient is φ = 111498240.

The previous prime is 195470911. The next prime is 195470929. The reversal of 195470913 is 319074591.

It is a happy number.

It is not a de Polignac number, because 195470913 - 21 = 195470911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195470911) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 173656 + ... + 174777.

It is an arithmetic number, because the mean of its divisors is an integer number (18815436).

Almost surely, 2195470913 is an apocalyptic number.

It is an amenable number.

195470913 is a deficient number, since it is larger than the sum of its proper divisors (105576063).

195470913 is a wasteful number, since it uses less digits than its factorization.

195470913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348464.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 195470913 is about 13981.0912664212. The cubic root of 195470913 is about 580.3554232545.

The spelling of 195470913 in words is "one hundred ninety-five million, four hundred seventy thousand, nine hundred thirteen".

Divisors: 1 3 11 17 33 51 187 561 348433 1045299 3832763 5923361 11498289 17770083 65156971 195470913