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195115625 = 55292153
BaseRepresentation
bin10111010000100…
…11101001101001
3111121010220022122
423220103221221
5344422200000
631210001025
74556312135
oct1350235151
9447126278
10195115625
11a0157291
1255416175
1331567043
141bcb03c5
15121e2085
hexba13a69

195115625 has 24 divisors (see below), whose sum is σ = 252405720. Its totient is φ = 150640000.

The previous prime is 195115621. The next prime is 195115673. The reversal of 195115625 is 526511591.

195115625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 187032976 + 8082649 = 13676^2 + 2843^2 .

It is not a de Polignac number, because 195115625 - 22 = 195115621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195115621) 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, 89549 + ... + 91701.

It is an arithmetic number, because the mean of its divisors is an integer number (10516905).

Almost surely, 2195115625 is an apocalyptic number.

It is an amenable number.

195115625 is a deficient number, since it is larger than the sum of its proper divisors (57290095).

195115625 is an frugal number, since it uses more digits than its factorization.

195115625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207 (or 2187 counting only the distinct ones).

The product of its digits is 13500, while the sum is 35.

The square root of 195115625 is about 13968.3794693586. The cubic root of 195115625 is about 580.0035919318.

It can be divided in two parts, 1951 and 15625, that added together give a cube (17576 = 263).

The spelling of 195115625 in words is "one hundred ninety-five million, one hundred fifteen thousand, six hundred twenty-five".

Divisors: 1 5 25 29 125 145 625 725 2153 3125 3625 10765 18125 53825 62437 90625 269125 312185 1345625 1560925 6728125 7804625 39023125 195115625