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104010440 = 2354163421
BaseRepresentation
bin1100011001100…
…01001011001000
321020201021111112
412030301023020
5203111313230
614153145452
72402034302
oct614611310
9236637445
10104010440
1153790646
122a9bb288
1318719051
14db56972
1591e7d95
hex63312c8

104010440 has 32 divisors (see below), whose sum is σ = 239735160. Its totient is φ = 40588800.

The previous prime is 104010419. The next prime is 104010449. The reversal of 104010440 is 44010401.

It can be written as a sum of positive squares in 4 ways, for example, as 36409156 + 67601284 = 6034^2 + 8222^2 .

It is not an unprimeable number, because it can be changed into a prime (104010449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30071 + ... + 33350.

Almost surely, 2104010440 is an apocalyptic number.

104010440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104010440 is an abundant number, since it is smaller than the sum of its proper divisors (135724720).

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

104010440 is a wasteful number, since it uses less digits than its factorization.

104010440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63473 (or 63469 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 104010440 is about 10198.5508774531. The cubic root of 104010440 is about 470.2826728729.

Adding to 104010440 its reverse (44010401), we get a palindrome (148020841).

The spelling of 104010440 in words is "one hundred four million, ten thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 41 82 164 205 328 410 820 1640 63421 126842 253684 317105 507368 634210 1268420 2536840 2600261 5200522 10401044 13001305 20802088 26002610 52005220 104010440