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104440540 = 2256185607
BaseRepresentation
bin1100011100110…
…10001011011100
321021112010111011
412032122023130
5203214044130
614210305004
72405505241
oct616321334
9237463434
10104440540
1153a547a6
122ab88164
1318839a49
14dc295c8
15928052a
hex639a2dc

104440540 has 24 divisors (see below), whose sum is σ = 222923232. Its totient is φ = 41090880.

The previous prime is 104440517. The next prime is 104440541. The reversal of 104440540 is 45044401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104440541) 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, 41584 + ... + 44023.

It is an arithmetic number, because the mean of its divisors is an integer number (9288468).

Almost surely, 2104440540 is an apocalyptic number.

104440540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104440540 is an abundant number, since it is smaller than the sum of its proper divisors (118482692).

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

104440540 is a wasteful number, since it uses less digits than its factorization.

104440540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85677 (or 85675 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 104440540 is about 10219.6154526479. The cubic root of 104440540 is about 470.9300130562.

Adding to 104440540 its reverse (45044401), we get a palindrome (149484941).

The spelling of 104440540 in words is "one hundred four million, four hundred forty thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 85607 171214 342428 428035 856070 1712140 5222027 10444054 20888108 26110135 52220270 104440540