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68782560528 = 24311294492069
BaseRepresentation
bin100000000001111000…
…0101001010100010000
320120112120112002212210
41000003300221110100
52111331313414103
651333120552120
74653332055303
oct1000360512420
9216476462783
1068782560528
1127196a64850
12113b7182640
136642158376
143487066b3a
151bc87cce03
hex1003c29510

68782560528 has 80 divisors (see below), whose sum is σ = 200526004800. Its totient is φ = 20124464640.

The previous prime is 68782560523. The next prime is 68782560563. The reversal of 68782560528 is 82506528786.

It is not an unprimeable number, because it can be changed into a prime (68782560523) 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 15 ways as a sum of consecutive naturals, for example, 2230723 + ... + 2261346.

It is an arithmetic number, because the mean of its divisors is an integer number (2506575060).

Almost surely, 268782560528 is an apocalyptic number.

It is an amenable number.

68782560528 is an abundant number, since it is smaller than the sum of its proper divisors (131743444272).

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

68782560528 is a wasteful number, since it uses less digits than its factorization.

68782560528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492120 (or 4492114 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 57.

The spelling of 68782560528 in words is "sixty-eight billion, seven hundred eighty-two million, five hundred sixty thousand, five hundred twenty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 29 33 44 48 58 66 87 88 116 132 174 176 232 264 319 348 464 528 638 696 957 1276 1392 1914 2552 3828 5104 7656 15312 4492069 8984138 13476207 17968276 26952414 35936552 49412759 53904828 71873104 98825518 107809656 130270001 148238277 197651036 215619312 260540002 296476554 390810003 395302072 521080004 592953108 781620006 790604144 1042160008 1185906216 1432970011 1563240012 2084320016 2371812432 2865940022 3126480024 4298910033 5731880044 6252960048 8597820066 11463760088 17195640132 22927520176 34391280264 68782560528