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72300288 = 283472003
BaseRepresentation
bin1000100111100…
…11011100000000
312001001020100110
410103303130000
5122002102123
611101351320
71535354004
oct423633400
9161036313
1072300288
11378a2305
1220268540
1311c95848
149860704
156532493
hex44f3700

72300288 has 72 divisors (see below), whose sum is σ = 196616448. Its totient is φ = 23575552.

The previous prime is 72300287. The next prime is 72300289. The reversal of 72300288 is 88200327.

It is an interprime number because it is at equal distance from previous prime (72300287) and next prime (72300289).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72300281) 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, 35095 + ... + 37097.

It is an arithmetic number, because the mean of its divisors is an integer number (2730784).

Almost surely, 272300288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72300288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98308224).

72300288 is an abundant number, since it is smaller than the sum of its proper divisors (124316160).

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

72300288 is a wasteful number, since it uses less digits than its factorization.

72300288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069 (or 2055 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 72300288 is about 8502.9576030932. The cubic root of 72300288 is about 416.5943181762.

The spelling of 72300288 in words is "seventy-two million, three hundred thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 47 48 64 94 96 128 141 188 192 256 282 376 384 564 752 768 1128 1504 2003 2256 3008 4006 4512 6009 6016 8012 9024 12018 12032 16024 18048 24036 32048 36096 48072 64096 94141 96144 128192 188282 192288 256384 282423 376564 384576 512768 564846 753128 769152 1129692 1506256 1538304 2259384 3012512 4518768 6025024 9037536 12050048 18075072 24100096 36150144 72300288