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508660340 = 225109323269
BaseRepresentation
bin11110010100011…
…000101001110100
31022110010121210212
4132110120221310
52020204112330
6122250204552
715414353516
oct3624305164
91273117725
10508660340
11241142051
12122423758
13814c7c66
144b7abbb6
152e9c9295
hex1e518a74

508660340 has 24 divisors (see below), whose sum is σ = 1069209960. Its totient is φ = 203269248.

The previous prime is 508660333. The next prime is 508660357. The reversal of 508660340 is 43066805.

It can be written as a sum of positive squares in 4 ways, for example, as 165225316 + 343435024 = 12854^2 + 18532^2 .

It is a junction number, because it is equal to n+sod(n) for n = 508660297 and 508660306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10226 + ... + 33494.

It is an arithmetic number, because the mean of its divisors is an integer number (44550415).

Almost surely, 2508660340 is an apocalyptic number.

It is an amenable number.

508660340 is an abundant number, since it is smaller than the sum of its proper divisors (560549620).

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

508660340 is a wasteful number, since it uses less digits than its factorization.

508660340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24371 (or 24369 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 508660340 is about 22553.4995067284. The cubic root of 508660340 is about 798.2567980677.

The spelling of 508660340 in words is "five hundred eight million, six hundred sixty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 1093 2186 4372 5465 10930 21860 23269 46538 93076 116345 232690 465380 25433017 50866034 101732068 127165085 254330170 508660340