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2020661360 = 24525258267
BaseRepresentation
bin111100001110000…
…1101100001110000
312012211020020021122
41320130031201300
513114242130420
6532301441412
7101034223664
oct17034154160
95184206248
102020661360
11947679873
12484870268
1326282c813
141525168a4
15bc5e4725
hex7870d870

2020661360 has 20 divisors (see below), whose sum is σ = 4698037848. Its totient is φ = 808264512.

The previous prime is 2020661351. The next prime is 2020661387. The reversal of 2020661360 is 631660202.

It is a tau number, because it is divible by the number of its divisors (20).

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, 12629054 + ... + 12629213.

Almost surely, 22020661360 is an apocalyptic number.

2020661360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020661360 is an abundant number, since it is smaller than the sum of its proper divisors (2677376488).

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

2020661360 is a wasteful number, since it uses less digits than its factorization.

2020661360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25258280 (or 25258274 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 2020661360 is about 44951.7670397950. The cubic root of 2020661360 is about 1264.2448085089.

The spelling of 2020661360 in words is "two billion, twenty million, six hundred sixty-one thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 25258267 50516534 101033068 126291335 202066136 252582670 404132272 505165340 1010330680 2020661360