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240213020 = 22512010651
BaseRepresentation
bin11100101000101…
…01110000011100
3121202000002022112
432110111300130
5442443304040
635500333152
75644530335
oct1624256034
9552002275
10240213020
11113659663
12685441b8
133a9c6aa8
1423c8d28c
151614e365
hexe515c1c

240213020 has 12 divisors (see below), whose sum is σ = 504447384. Its totient is φ = 96085200.

The previous prime is 240212993. The next prime is 240213037. The reversal of 240213020 is 20312042.

It is a junction number, because it is equal to n+sod(n) for n = 240212986 and 240213004.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 6005306 + ... + 6005345.

It is an arithmetic number, because the mean of its divisors is an integer number (42037282).

Almost surely, 2240213020 is an apocalyptic number.

240213020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240213020 is an abundant number, since it is smaller than the sum of its proper divisors (264234364).

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

240213020 is a wasteful number, since it uses less digits than its factorization.

240213020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12010660 (or 12010658 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 240213020 is about 15498.8070508669. The cubic root of 240213020 is about 621.6303086723.

Adding to 240213020 its reverse (20312042), we get a palindrome (260525062).

The spelling of 240213020 in words is "two hundred forty million, two hundred thirteen thousand, twenty".

Divisors: 1 2 4 5 10 20 12010651 24021302 48042604 60053255 120106510 240213020