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2799129778982 = 25488125501811
BaseRepresentation
bin101000101110111001001…
…000101101101100100110
3100220121001011111210010122
4220232321020231230212
5331330104210411412
65541522533321542
7406142021356415
oct50567110555446
910817034453118
102799129778982
1198a116872659
123925a6a962b2
13173c59142864
149969b40b47c
154cc29bc6572
hex28bb922db26

2799129778982 has 8 divisors (see below), whose sum is σ = 4198771338552. Its totient is φ = 1399539332800.

The previous prime is 2799129778981. The next prime is 2799129779009. The reversal of 2799129778982 is 2898779219972.

2799129778982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×27991297789823 (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2799129778897 and 2799129778906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2799129778981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12641144 + ... + 12860667.

It is an arithmetic number, because the mean of its divisors is an integer number (524846417319).

Almost surely, 22799129778982 is an apocalyptic number.

2799129778982 is a deficient number, since it is larger than the sum of its proper divisors (1399641559570).

2799129778982 is a wasteful number, since it uses less digits than its factorization.

2799129778982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25556694.

The product of its digits is 1152216576, while the sum is 80.

The spelling of 2799129778982 in words is "two trillion, seven hundred ninety-nine billion, one hundred twenty-nine million, seven hundred seventy-eight thousand, nine hundred eighty-two".

Divisors: 1 2 54881 109762 25501811 51003622 1399564889491 2799129778982