Search a number
-
+
2020657460 = 225101032873
BaseRepresentation
bin111100001110000…
…1100100100110100
312012211020000221012
41320130030210310
513114242014320
6532301411352
7101034206423
oct17034144464
95184200835
102020657460
11947676948
12484869b58
1326282ab03
141525152ba
15bc5e34c5
hex7870c934

2020657460 has 12 divisors (see below), whose sum is σ = 4243380708. Its totient is φ = 808262976.

The previous prime is 2020657453. The next prime is 2020657477. The reversal of 2020657460 is 647560202.

It can be written as a sum of positive squares in 2 ways, for example, as 1390245796 + 630411664 = 37286^2 + 25108^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 50516417 + ... + 50516456.

It is an arithmetic number, because the mean of its divisors is an integer number (353615059).

Almost surely, 22020657460 is an apocalyptic number.

2020657460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020657460 is an abundant number, since it is smaller than the sum of its proper divisors (2222723248).

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

2020657460 is a wasteful number, since it uses less digits than its factorization.

2020657460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101032882 (or 101032880 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 2020657460 is about 44951.7236599443. The cubic root of 2020657460 is about 1264.2439951518.

The spelling of 2020657460 in words is "two billion, twenty million, six hundred fifty-seven thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 101032873 202065746 404131492 505164365 1010328730 2020657460