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68584500 = 22325315241
BaseRepresentation
bin1000001011010…
…00010000110100
311210001110020200
410011220100310
5120024201000
610450000500
71461646545
oct405502064
9153043220
1068584500
1135794606
121ab76130
131129445a
1491744cc
15604b500
hex4168434

68584500 has 72 divisors (see below), whose sum is σ = 216375432. Its totient is φ = 18288000.

The previous prime is 68584499. The next prime is 68584517. The reversal of 68584500 is 548586.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 224676 + 68359824 = 474^2 + 8268^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3121 + ... + 12120.

Almost surely, 268584500 is an apocalyptic number.

68584500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68584500 is an abundant number, since it is smaller than the sum of its proper divisors (147790932).

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

68584500 is a wasteful number, since it uses less digits than its factorization.

68584500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15266 (or 15251 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 68584500 is about 8281.5759369820. The cubic root of 68584500 is about 409.3316495479.

The spelling of 68584500 in words is "sixty-eight million, five hundred eighty-four thousand, five hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 90 100 125 150 180 225 250 300 375 450 500 750 900 1125 1500 2250 4500 15241 30482 45723 60964 76205 91446 137169 152410 182892 228615 274338 304820 381025 457230 548676 685845 762050 914460 1143075 1371690 1524100 1905125 2286150 2743380 3429225 3810250 4572300 5715375 6858450 7620500 11430750 13716900 17146125 22861500 34292250 68584500