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104549980 = 22531168629
BaseRepresentation
bin1100011101101…
…00111001011100
321021201200121111
412032310321130
5203231044410
614212511404
72406442303
oct616647134
9237650544
10104549980
1154019a47
122b01b564
13188777c2
14dc5743a
1592a2b8a
hex63b4e5c

104549980 has 24 divisors (see below), whose sum is σ = 226638720. Its totient is φ = 40470720.

The previous prime is 104549971. The next prime is 104549987. The reversal of 104549980 is 89945401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104549987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83695 + ... + 84934.

It is an arithmetic number, because the mean of its divisors is an integer number (9443280).

Almost surely, 2104549980 is an apocalyptic number.

104549980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104549980 is an abundant number, since it is smaller than the sum of its proper divisors (122088740).

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

104549980 is a wasteful number, since it uses less digits than its factorization.

104549980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168669 (or 168667 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 104549980 is about 10224.9684596091. The cubic root of 104549980 is about 471.0944466156.

The spelling of 104549980 in words is "one hundred four million, five hundred forty-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 168629 337258 674516 843145 1686290 3372580 5227499 10454998 20909996 26137495 52274990 104549980