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104320540 = 225291311373
BaseRepresentation
bin1100011011111…
…00111000011100
321021022000212201
412031330320130
5203201224130
614203541244
72404465342
oct615747034
9237260781
10104320540
1153982625
122ab2a824
13187c723c
14dbd7992
159259bca
hex637ce1c

104320540 has 48 divisors (see below), whose sum is σ = 228523680. Its totient is φ = 39952640.

The previous prime is 104320529. The next prime is 104320543. The reversal of 104320540 is 45023401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104320543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75294 + ... + 76666.

It is an arithmetic number, because the mean of its divisors is an integer number (4760910).

Almost surely, 2104320540 is an apocalyptic number.

104320540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104320540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114261840).

104320540 is an abundant number, since it is smaller than the sum of its proper divisors (124203140).

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

104320540 is a wasteful number, since it uses less digits than its factorization.

104320540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 104320540 is about 10213.7427028489. The cubic root of 104320540 is about 470.7495810166.

Adding to 104320540 its reverse (45023401), we get a palindrome (149343941).

The spelling of 104320540 in words is "one hundred four million, three hundred twenty thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 131 145 262 290 524 580 655 1310 1373 2620 2746 3799 5492 6865 7598 13730 15196 18995 27460 37990 39817 75980 79634 159268 179863 199085 359726 398170 719452 796340 899315 1798630 3597260 5216027 10432054 20864108 26080135 52160270 104320540