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104853981 = 3534331523
BaseRepresentation
bin1100011111111…
…11000111011101
321022022010121210
412033333013131
5203320311411
614223215033
72412146511
oct617770735
9238263553
10104853981
1154207391
122b147479
1318952c9b
14dcd6141
159312ca6
hex63ff1dd

104853981 has 16 divisors (see below), whose sum is σ = 142865856. Its totient is φ = 68380416.

The previous prime is 104853971. The next prime is 104854003. The reversal of 104853981 is 189358401.

It is not a de Polignac number, because 104853981 - 213 = 104845789 is a prime.

It is a super-2 number, since 2×1048539812 = 21988714663096722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104853911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68086 + ... + 69608.

It is an arithmetic number, because the mean of its divisors is an integer number (8929116).

Almost surely, 2104853981 is an apocalyptic number.

It is an amenable number.

104853981 is a deficient number, since it is larger than the sum of its proper divisors (38011875).

104853981 is a wasteful number, since it uses less digits than its factorization.

104853981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 104853981 is about 10239.8232894909. The cubic root of 104853981 is about 471.5506067514.

The spelling of 104853981 in words is "one hundred four million, eight hundred fifty-three thousand, nine hundred eighty-one".

Divisors: 1 3 53 159 433 1299 1523 4569 22949 68847 80719 242157 659459 1978377 34951327 104853981