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2800247940449 = 523264715823
BaseRepresentation
bin101000101111111011110…
…010001010010101100001
3100220200221002112021022022
4220233323302022111201
5331334401433043244
65542225515351225
7406211516523401
oct50577362122541
910820832467268
102800247940449
1198a63aa61943
12392859452515
131740a69b1b6b
1499765b16801
154cc92e486ee
hex28bfbc8a561

2800247940449 has 12 divisors (see below), whose sum is σ = 2810126307456. Its totient is φ = 2790397602072.

The previous prime is 2800247940407. The next prime is 2800247940481. The reversal of 2800247940449 is 9440497420082.

It is not a de Polignac number, because 2800247940449 - 216 = 2800247874913 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 2800247940449.

It is not an unprimeable number, because it can be changed into a prime (2800247940499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176965352 + ... + 176981174.

It is an arithmetic number, because the mean of its divisors is an integer number (234177192288).

Almost surely, 22800247940449 is an apocalyptic number.

It is an amenable number.

2800247940449 is a deficient number, since it is larger than the sum of its proper divisors (9878367007).

2800247940449 is an frugal number, since it uses more digits than its factorization.

2800247940449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17516 (or 16993 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 2800247940449 in words is "two trillion, eight hundred billion, two hundred forty-seven million, nine hundred forty thousand, four hundred forty-nine".

Divisors: 1 523 647 15823 273529 338381 8275429 10237481 176973263 4328049367 5354202563 2800247940449