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2020477459225 = 5229298032
BaseRepresentation
bin11101011001101101110…
…101110101101100011001
321011011012112210120010211
4131121231311311230121
5231100414212143400
64144110004011121
7265655213015251
oct35315565655431
97134175716124
102020477459225
11709974941005
122876b9990aa1
131186b7b31354
146db12340961
1537855b0cdba
hex1d66dd75b19

2020477459225 has 27 divisors (see below), whose sum is σ = 2595028659613. Its totient is φ = 1560485457440.

The previous prime is 2020477459193. The next prime is 2020477459381. The reversal of 2020477459225 is 5229547740202.

The square root of 2020477459225 is 1421435.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 27772555801 + 1992704903424 = 166651^2 + 1411632^2 .

It is not a de Polignac number, because 2020477459225 - 25 = 2020477459193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 206103174 + ... + 206112976.

Almost surely, 22020477459225 is an apocalyptic number.

2020477459225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2020477459225 is the 1421435-th square number.

2020477459225 is the 710718-th centered octagonal number.

It is an amenable number.

2020477459225 is a deficient number, since it is larger than the sum of its proper divisors (574551200388).

2020477459225 is an frugal number, since it uses more digits than its factorization.

2020477459225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19674 (or 9837 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 49.

Multiplying 2020477459225 by its sum of digits (49), we get a square (99003395502025 = 99500452).

The spelling of 2020477459225 in words is "two trillion, twenty billion, four hundred seventy-seven million, four hundred fifty-nine thousand, two hundred twenty-five".

Divisors: 1 5 25 29 145 725 841 4205 9803 21025 49015 245075 284287 1421435 7107175 8244323 41221615 96098809 206108075 480494045 2402470225 2786865461 13934327305 69671636525 80819098369 404095491845 2020477459225