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2108428818980 = 2251173211309079
BaseRepresentation
bin11110101011101000001…
…001101001101000100100
321110120020000210120011112
4132223220021221220210
5234021030234201410
64252333202524152
7305220555154601
oct36535011515044
97416200716145
102108428818980
117431a8113390
122a0764666658
13123a933a8a63
14740971216a8
1539ca21ba105
hex1eae8269a24

2108428818980 has 48 divisors (see below), whose sum is σ = 4830882215040. Its totient is φ = 766596076800.

The previous prime is 2108428818917. The next prime is 2108428818997. The reversal of 2108428818980 is 898188248012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956081 + ... + 2265159.

It is an arithmetic number, because the mean of its divisors is an integer number (100643379480).

Almost surely, 22108428818980 is an apocalyptic number.

2108428818980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2108428818980 is an abundant number, since it is smaller than the sum of its proper divisors (2722453396060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2108428818980 is a wasteful number, since it uses less digits than its factorization.

2108428818980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316420 (or 1316418 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 59.

The spelling of 2108428818980 in words is "two trillion, one hundred eight billion, four hundred twenty-eight million, eight hundred eighteen thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 7321 14642 29284 36605 73210 80531 146420 161062 322124 402655 805310 1309079 1610620 2618158 5236316 6545395 13090790 14399869 26181580 28799738 57599476 71999345 143998690 287997380 9583767359 19167534718 38335069436 47918836795 95837673590 105421440949 191675347180 210842881898 421685763796 527107204745 1054214409490 2108428818980