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260989092 = 2232721319599
BaseRepresentation
bin11111000111001…
…10000010100100
3200012002121201200
433203212002210
51013303122332
641521522500
76316241100
oct1743460244
9605077650
10260989092
11124359a71
12734a3430
13420bc520
142693a900
1517da517c
hexf8e60a4

260989092 has 216 divisors, whose sum is σ = 871416000. Its totient is φ = 65100672.

The previous prime is 260989087. The next prime is 260989121. The reversal of 260989092 is 290989062.

It is a super-3 number, since 3×2609890923 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 435409 + ... + 436007.

Almost surely, 2260989092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260989092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435708000).

260989092 is an abundant number, since it is smaller than the sum of its proper divisors (610426908).

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

260989092 is a wasteful number, since it uses less digits than its factorization.

260989092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 260989092 is about 16155.1568237514. The cubic root of 260989092 is about 639.0587498424.

The spelling of 260989092 in words is "two hundred sixty million, nine hundred eighty-nine thousand, ninety-two".