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512052020 = 22525602601
BaseRepresentation
bin11110100001010…
…100101100110100
31022200111221022122
4132201110230310
52022041131040
6122451015112
715455241014
oct3641245464
91280457278
10512052020
11243049297
1212359a498
138211497c
144c011c44
152ee491b5
hex1e854b34

512052020 has 12 divisors (see below), whose sum is σ = 1075309284. Its totient is φ = 204820800.

The previous prime is 512052011. The next prime is 512052089. The reversal of 512052020 is 20250215.

It can be written as a sum of positive squares in 2 ways, for example, as 384316816 + 127735204 = 19604^2 + 11302^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 512052020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12801281 + ... + 12801320.

It is an arithmetic number, because the mean of its divisors is an integer number (89609107).

Almost surely, 2512052020 is an apocalyptic number.

It is an amenable number.

512052020 is an abundant number, since it is smaller than the sum of its proper divisors (563257264).

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

512052020 is a wasteful number, since it uses less digits than its factorization.

512052020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25602610 (or 25602608 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 512052020 is about 22628.5664592347. The cubic root of 512052020 is about 800.0270928325.

It can be divided in two parts, 5120 and 52020, that multiplied together give a square (266342400 = 163202).

The spelling of 512052020 in words is "five hundred twelve million, fifty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 25602601 51205202 102410404 128013005 256026010 512052020