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240515030 = 257370121
BaseRepresentation
bin11100101010111…
…11011111010110
3121202120102121002
432111133133112
5443032440110
635511023302
75650226000
oct1625373726
9552512532
10240515030
11113845558
126866ab32
133aaa13b2
1423d2b370
15161adaa5
hexe55f7d6

240515030 has 32 divisors (see below), whose sum is σ = 504878400. Its totient is φ = 82461120.

The previous prime is 240515017. The next prime is 240515047. The reversal of 240515030 is 30515042.

It is a junction number, because it is equal to n+sod(n) for n = 240514993 and 240515011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31631 + ... + 38490.

It is an arithmetic number, because the mean of its divisors is an integer number (15777450).

Almost surely, 2240515030 is an apocalyptic number.

240515030 is an abundant number, since it is smaller than the sum of its proper divisors (264363370).

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

240515030 is an equidigital number, since it uses as much as digits as its factorization.

240515030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70149 (or 70135 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 240515030 is about 15508.5469983490. The cubic root of 240515030 is about 621.8907163524.

The spelling of 240515030 in words is "two hundred forty million, five hundred fifteen thousand, thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 343 490 686 1715 3430 70121 140242 350605 490847 701210 981694 2454235 3435929 4908470 6871858 17179645 24051503 34359290 48103006 120257515 240515030