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72868096 = 287237157
BaseRepresentation
bin1000101011111…
…10000100000000
312002010002020101
410111332010000
5122123234341
611121452144
71543240300
oct425760400
9162102211
1072868096
113814a974
12204a1054
1312134122
14996b600
1565e5831
hex457e100

72868096 has 108 divisors (see below), whose sum is σ = 174878508. Its totient is φ = 30191616.

The previous prime is 72868093. The next prime is 72868121. The reversal of 72868096 is 69086827.

It can be written as a sum of positive squares in 2 ways, for example, as 45158400 + 27709696 = 6720^2 + 5264^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72868091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 464050 + ... + 464206.

Almost surely, 272868096 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 72868096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87439254).

72868096 is an abundant number, since it is smaller than the sum of its proper divisors (102010412).

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

72868096 is a wasteful number, since it uses less digits than its factorization.

72868096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 72868096 is about 8536.2811575065. The cubic root of 72868096 is about 417.6820457008.

The spelling of 72868096 in words is "seventy-two million, eight hundred sixty-eight thousand, ninety-six".

Divisors: 1 2 4 7 8 14 16 28 32 37 49 56 64 74 98 112 128 148 157 196 224 256 259 296 314 392 448 518 592 628 784 896 1036 1099 1184 1256 1568 1792 1813 2072 2198 2368 2512 3136 3626 4144 4396 4736 5024 5809 6272 7252 7693 8288 8792 9472 10048 11618 12544 14504 15386 16576 17584 20096 23236 29008 30772 33152 35168 40192 40663 46472 58016 61544 66304 70336 81326 92944 116032 123088 140672 162652 185888 232064 246176 281344 284641 325304 371776 464128 492352 569282 650608 743552 984704 1138564 1301216 1487104 1969408 2277128 2602432 4554256 5204864 9108512 10409728 18217024 36434048 72868096