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266400050 = 25273143571
BaseRepresentation
bin11111110000011…
…11000100110010
3200120021112011112
433320033010302
51021144300200
642233513322
76413235350
oct1770170462
9616245145
10266400050
11127415334
1275272842
1343265387
14275487d0
15185c3535
hexfe0f132

266400050 has 96 divisors (see below), whose sum is σ = 599199744. Its totient is φ = 86184000.

The previous prime is 266400049. The next prime is 266400059. The reversal of 266400050 is 50004662.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 266399989 and 266400025.

It is not an unprimeable number, because it can be changed into a prime (266400059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 466265 + ... + 466835.

It is an arithmetic number, because the mean of its divisors is an integer number (6241664).

Almost surely, 2266400050 is an apocalyptic number.

266400050 is an abundant number, since it is smaller than the sum of its proper divisors (332799694).

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

266400050 is a wasteful number, since it uses less digits than its factorization.

266400050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 266400050 is about 16321.7661421796. The cubic root of 266400050 is about 643.4450052386.

The spelling of 266400050 in words is "two hundred sixty-six million, four hundred thousand, fifty".

Divisors: 1 2 5 7 10 14 25 31 35 43 50 62 70 86 155 175 215 217 301 310 350 430 434 571 602 775 1075 1085 1142 1333 1505 1550 2150 2170 2666 2855 3010 3997 5425 5710 6665 7525 7994 9331 10850 13330 14275 15050 17701 18662 19985 24553 28550 33325 35402 39970 46655 49106 66650 88505 93310 99925 122765 123907 171871 177010 199850 233275 245530 247814 343742 442525 466550 613825 619535 761143 859355 885050 1227650 1239070 1522286 1718710 3097675 3805715 4296775 5328001 6195350 7611430 8593550 10656002 19028575 26640005 38057150 53280010 133200025 266400050