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2799853982849 = 721123225849317
BaseRepresentation
bin101000101111100100010…
…011010101010010000001
3100220122220122020011002002
4220233210103111102001
5331333100104422344
65542122443433345
7406165664116100
oct50574423252201
910818818204062
102799853982849
1198a458643750
12392769525855
131740431a7961
1499729686037
154cc6d57a44e
hex28be44d5481

2799853982849 has 24 divisors (see below), whose sum is σ = 3707542404288. Its totient is φ = 2086847679840.

The previous prime is 2799853982789. The next prime is 2799853982873. The reversal of 2799853982849 is 9482893589972.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-2799853982849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2799853982899) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112912262 + ... + 112937055.

It is an arithmetic number, because the mean of its divisors is an integer number (154480933512).

Almost surely, 22799853982849 is an apocalyptic number.

It is an amenable number.

2799853982849 is a deficient number, since it is larger than the sum of its proper divisors (907688421439).

2799853982849 is a wasteful number, since it uses less digits than its factorization.

2799853982849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225849365 (or 225849358 counting only the distinct ones).

The product of its digits is 5643509760, while the sum is 83.

The spelling of 2799853982849 in words is "two trillion, seven hundred ninety-nine billion, eight hundred fifty-three million, nine hundred eighty-two thousand, eight hundred forty-nine".

Divisors: 1 7 11 23 49 77 161 253 539 1127 1771 12397 225849317 1580945219 2484342487 5194534291 11066616533 17390397409 36361740037 57139877201 121732781863 254532180259 399979140407 2799853982849