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240828040 = 23519316879
BaseRepresentation
bin11100101101010…
…11111010001000
3121210011022222001
432112223322020
5443122444130
635521440344
75653001365
oct1626537210
9553138861
10240828040
11113a39742
12687a00b4
133ab809cb
1423dad46c
15162216ca
hexe5abe88

240828040 has 32 divisors (see below), whose sum is σ = 570384000. Its totient is φ = 91260864.

The previous prime is 240828023. The next prime is 240828041. The reversal of 240828040 is 40828042.

It is not an unprimeable number, because it can be changed into a prime (240828041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157680 + ... + 159199.

It is an arithmetic number, because the mean of its divisors is an integer number (17824500).

Almost surely, 2240828040 is an apocalyptic number.

240828040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240828040 is an abundant number, since it is smaller than the sum of its proper divisors (329555960).

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

240828040 is a wasteful number, since it uses less digits than its factorization.

240828040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316909 (or 316905 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 240828040 is about 15518.6352492737. The cubic root of 240828040 is about 622.1603788214.

The spelling of 240828040 in words is "two hundred forty million, eight hundred twenty-eight thousand, forty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 316879 633758 1267516 1584395 2535032 3168790 6020701 6337580 12041402 12675160 24082804 30103505 48165608 60207010 120414020 240828040