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240275385 = 3257762779
BaseRepresentation
bin11100101001001…
…00111110111001
3121202010020212100
432110210332321
5443002303020
635501534013
75645210220
oct1624447671
9552106770
10240275385
111136a14a9
1268574309
133aa192ac
1423ca7cb7
1516162a90
hexe524fb9

240275385 has 24 divisors (see below), whose sum is σ = 475974720. Its totient is φ = 109840032.

The previous prime is 240275383. The next prime is 240275393. The reversal of 240275385 is 583572042.

240275385 is a `hidden beast` number, since 2 + 4 + 0 + 275 + 385 = 666.

It is not a de Polignac number, because 240275385 - 21 = 240275383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240275381) 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, 381075 + ... + 381704.

It is an arithmetic number, because the mean of its divisors is an integer number (19832280).

Almost surely, 2240275385 is an apocalyptic number.

It is an amenable number.

240275385 is a deficient number, since it is larger than the sum of its proper divisors (235699335).

240275385 is a wasteful number, since it uses less digits than its factorization.

240275385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762797 (or 762794 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 240275385 is about 15500.8188493383. The cubic root of 240275385 is about 621.6841006770.

It can be divided in two parts, 240 and 275385, that added together give a square (275625 = 5252).

The spelling of 240275385 in words is "two hundred forty million, two hundred seventy-five thousand, three hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 762779 2288337 3813895 5339453 6865011 11441685 16018359 26697265 34325055 48055077 80091795 240275385