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240252040 = 2357858043
BaseRepresentation
bin11100101000111…
…11010010001000
3121202002001211201
432110133102020
5443001031130
635501233544
75645052160
oct1624372210
9552061751
10240252040
11113685a06
12685628b4
133aa0b792
1423c9d5a0
151615abca
hexe51f488

240252040 has 32 divisors (see below), whose sum is σ = 617791680. Its totient is φ = 82372032.

The previous prime is 240252031. The next prime is 240252059. The reversal of 240252040 is 40252042.

240252040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 240251999 and 240252017.

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 7 ways as a sum of consecutive naturals, for example, 428742 + ... + 429301.

It is an arithmetic number, because the mean of its divisors is an integer number (19305990).

Almost surely, 2240252040 is an apocalyptic number.

240252040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240252040 is an abundant number, since it is smaller than the sum of its proper divisors (377539640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240252040 is a wasteful number, since it uses less digits than its factorization.

240252040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858061 (or 858057 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 240252040 is about 15500.0658063119. The cubic root of 240252040 is about 621.6639658840.

The spelling of 240252040 in words is "two hundred forty million, two hundred fifty-two thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 858043 1716086 3432172 4290215 6006301 6864344 8580430 12012602 17160860 24025204 30031505 34321720 48050408 60063010 120126020 240252040