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104681280 = 26351123431
BaseRepresentation
bin1100011110101…
…00111101000000
321021222100201110
412033110331000
5203244300110
614215403320
72410530144
oct617247500
9237870643
10104681280
11540a9660
122b083540
13188c24b2
14dc8d224
1592cba20
hex63d4f40

104681280 has 224 divisors, whose sum is σ = 379219968. Its totient is φ = 24217600.

The previous prime is 104681263. The next prime is 104681287. The reversal of 104681280 is 82186401.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104681287) 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 31 ways as a sum of consecutive naturals, for example, 242665 + ... + 243095.

Almost surely, 2104681280 is an apocalyptic number.

104681280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104681280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189609984).

104681280 is an abundant number, since it is smaller than the sum of its proper divisors (274538688).

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

104681280 is a wasteful number, since it uses less digits than its factorization.

104681280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 104681280 is about 10231.3870027480. The cubic root of 104681280 is about 471.2915734676.

The spelling of 104681280 in words is "one hundred four million, six hundred eighty-one thousand, two hundred eighty".