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104440440 = 23351366949
BaseRepresentation
bin1100011100110…
…10001001111000
321021112010100110
412032122021320
5203214043230
614210304320
72405505036
oct616321170
9237463313
10104440440
1153a54715
122ab880a0
13188399a0
14dc29556
1592804b0
hex639a278

104440440 has 64 divisors (see below), whose sum is σ = 337428000. Its totient is φ = 25708032.

The previous prime is 104440433. The next prime is 104440459. The reversal of 104440440 is 44044401.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 31915 + ... + 35034.

Almost surely, 2104440440 is an apocalyptic number.

104440440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104440440 is an abundant number, since it is smaller than the sum of its proper divisors (232987560).

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

104440440 is a wasteful number, since it uses less digits than its factorization.

104440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66976 (or 66972 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 104440440 is about 10219.6105600947. The cubic root of 104440440 is about 470.9298627538.

Adding to 104440440 its reverse (44044401), we get a palindrome (148484841).

The spelling of 104440440 in words is "one hundred four million, four hundred forty thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 195 260 312 390 520 780 1560 66949 133898 200847 267796 334745 401694 535592 669490 803388 870337 1004235 1338980 1606776 1740674 2008470 2611011 2677960 3481348 4016940 4351685 5222022 6962696 8033880 8703370 10444044 13055055 17406740 20888088 26110110 34813480 52220220 104440440