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2800083489025 = 524341812
BaseRepresentation
bin101000101111110001111…
…110110101000100000001
3100220200111122002021100211
4220233301332311010001
5331334032333122100
65542201322514121
7406204451644234
oct50576176650401
910820448067324
102800083489025
1198a56614a079
12392812365941
1317407b8c3224
149974bd4941b
154cc837b21ba
hex28bf1fb5101

2800083489025 has 45 divisors (see below), whose sum is σ = 3574520767833. Its totient is φ = 2175883970400.

The previous prime is 2800083489023. The next prime is 2800083489031. The reversal of 2800083489025 is 5209843800082.

It is a happy number.

The square root of 2800083489025 is 1673345.

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

2800083489025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1502798936769 + 1297284552256 = 1225887^2 + 1138984^2 .

It is not a de Polignac number, because 2800083489025 - 21 = 2800083489023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2800083489025.

It is not an unprimeable number, because it can be changed into a prime (2800083489023) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 15470074435 + ... + 15470074615.

Almost surely, 22800083489025 is an apocalyptic number.

2800083489025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2800083489025 is the 1673345-th square number.

2800083489025 is the 836673-rd centered octagonal number.

It is an amenable number.

2800083489025 is a deficient number, since it is larger than the sum of its proper divisors (774437278808).

2800083489025 is an frugal number, since it uses more digits than its factorization.

2800083489025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

Multiplying 2800083489025 by its sum of digits (49), we get a square (137204090962225 = 117134152).

The spelling of 2800083489025 in words is "two trillion, eight hundred billion, eighty-three million, four hundred eighty-nine thousand, twenty-five".

Divisors: 1 5 25 43 181 215 905 1075 1849 4525 7783 9245 32761 38915 46225 79507 163805 194575 334669 397535 819025 1408723 1673345 1987675 3418801 7043615 8366725 14390767 17094005 35218075 60575089 71953835 85470025 302875445 359769175 618802981 1514377225 2604728827 3094014905 13023644135 15470074525 65118220675 112003339561 560016697805 2800083489025