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26381150800 = 2452173879581
BaseRepresentation
bin11000100100011100…
…000110101001010000
32112002112210022112021
4120210130012221100
5413012033311200
620041435341224
71622515040044
oct304434065120
975075708467
1026381150800
1110208521074
125142bb1814
132645715604
1413c3990024
15a4609241a
hex624706a50

26381150800 has 60 divisors (see below), whose sum is σ = 67109009436. Its totient is φ = 9931724800.

The previous prime is 26381150767. The next prime is 26381150801. The reversal of 26381150800 is 805118362.

It can be written as a sum of positive squares in 6 ways, for example, as 512931904 + 25868218896 = 22648^2 + 160836^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26381150801) 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 11 ways as a sum of consecutive naturals, for example, 1932991 + ... + 1946590.

Almost surely, 226381150800 is an apocalyptic number.

26381150800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26381150800 is an abundant number, since it is smaller than the sum of its proper divisors (40727858636).

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

26381150800 is a wasteful number, since it uses less digits than its factorization.

26381150800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879616 (or 3879605 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The spelling of 26381150800 in words is "twenty-six billion, three hundred eighty-one million, one hundred fifty thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 34 40 50 68 80 85 100 136 170 200 272 340 400 425 680 850 1360 1700 3400 6800 3879581 7759162 15518324 19397905 31036648 38795810 62073296 65952877 77591620 96989525 131905754 155183240 193979050 263811508 310366480 329764385 387958100 527623016 659528770 775916200 1055246032 1319057540 1551832400 1648821925 2638115080 3297643850 5276230160 6595287700 13190575400 26381150800