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240190625 = 55101761
BaseRepresentation
bin11100101000100…
…00010010100001
3121201221221121002
432110100102201
5442442100000
635500041345
75644405133
oct1624202241
9551857532
10240190625
11113643854
1268533255
133a9b983c
1423c85053
15161478d5
hexe5104a1

240190625 has 24 divisors (see below), whose sum is σ = 303589944. Its totient is φ = 190000000.

The previous prime is 240190597. The next prime is 240190627. The reversal of 240190625 is 526091042.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 239878144 + 312481 = 15488^2 + 559^2 .

It is not a de Polignac number, because 240190625 - 210 = 240189601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240190627) 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, 315245 + ... + 316005.

It is an arithmetic number, because the mean of its divisors is an integer number (12649581).

Almost surely, 2240190625 is an apocalyptic number.

240190625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

240190625 is a deficient number, since it is larger than the sum of its proper divisors (63399319).

240190625 is an frugal number, since it uses more digits than its factorization.

240190625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 240190625 is about 15498.0845590673. The cubic root of 240190625 is about 621.6109899257.

The spelling of 240190625 in words is "two hundred forty million, one hundred ninety thousand, six hundred twenty-five".

Divisors: 1 5 25 101 125 505 625 761 2525 3125 3805 12625 19025 63125 76861 95125 315625 384305 475625 1921525 2378125 9607625 48038125 240190625