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13426776280 = 235906737021
BaseRepresentation
bin11001000000100110…
…00101100011011000
31021122201211220110101
430200103011203120
5204444223320110
610100154225144
7653504500231
oct144023054330
937581756411
1013426776280
115770079825
1227287251b4
13135c929b48
14915300088
15538b5413a
hex3204c58d8

13426776280 has 32 divisors (see below), whose sum is σ = 30214394640. Its totient is φ = 5369973120.

The previous prime is 13426776271. The next prime is 13426776281. The reversal of 13426776280 is 8267762431.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13426776280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13426776281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344170 + ... + 381190.

Almost surely, 213426776280 is an apocalyptic number.

13426776280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13426776280 is an abundant number, since it is smaller than the sum of its proper divisors (16787618360).

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

13426776280 is a wasteful number, since it uses less digits than its factorization.

13426776280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46099 (or 46095 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 13426776280 in words is "thirteen billion, four hundred twenty-six million, seven hundred seventy-six thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 9067 18134 36268 37021 45335 72536 74042 90670 148084 181340 185105 296168 362680 370210 740420 1480840 335669407 671338814 1342677628 1678347035 2685355256 3356694070 6713388140 13426776280