Search a number
-
+
523042400 = 25521738459
BaseRepresentation
bin11111001011001…
…111111001100000
31100110012022021202
4133023033321200
52032344324100
6123522340332
715650533646
oct3713177140
91313168252
10523042400
11249275551
121271ba6a8
138449225a
144d673196
1530dba7d5
hex1f2cfe60

523042400 has 72 divisors (see below), whose sum is σ = 1352022840. Its totient is φ = 196904960.

The previous prime is 523042327. The next prime is 523042433. The reversal of 523042400 is 4240325.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5630 + ... + 32829.

It is an arithmetic number, because the mean of its divisors is an integer number (18778095).

Almost surely, 2523042400 is an apocalyptic number.

523042400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

523042400 is an abundant number, since it is smaller than the sum of its proper divisors (828980440).

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

523042400 is a wasteful number, since it uses less digits than its factorization.

523042400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38496 (or 38483 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 523042400 is about 22870.1202445462. The cubic root of 523042400 is about 805.7103922916.

Adding to 523042400 its reverse (4240325), we get a palindrome (527282725).

The spelling of 523042400 in words is "five hundred twenty-three million, forty-two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 32 34 40 50 68 80 85 100 136 160 170 200 272 340 400 425 544 680 800 850 1360 1700 2720 3400 6800 13600 38459 76918 153836 192295 307672 384590 615344 653803 769180 961475 1230688 1307606 1538360 1922950 2615212 3076720 3269015 3845900 5230424 6153440 6538030 7691800 10460848 13076060 15383600 16345075 20921696 26152120 30767200 32690150 52304240 65380300 104608480 130760600 261521200 523042400