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68801754 = 23717173557
BaseRepresentation
bin1000001100111…
…01010011011010
311210110111021010
410012131103122
5120103124004
610454354350
71463543130
oct406352332
9153414233
1068801754
113592285a
121b05b9b6
131133c2c8
1491cd750
156090a89
hex419d4da

68801754 has 64 divisors (see below), whose sum is σ = 167774976. Its totient is φ = 18361344.

The previous prime is 68801713. The next prime is 68801779. The reversal of 68801754 is 45710886.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123244 + ... + 123800.

It is an arithmetic number, because the mean of its divisors is an integer number (2621484).

Almost surely, 268801754 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68801754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83887488).

68801754 is an abundant number, since it is smaller than the sum of its proper divisors (98973222).

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

68801754 is a wasteful number, since it uses less digits than its factorization.

68801754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 68801754 is about 8294.6822723960. The cubic root of 68801754 is about 409.7634050393.

The spelling of 68801754 in words is "sixty-eight million, eight hundred one thousand, seven hundred fifty-four".

Divisors: 1 2 3 6 7 14 17 21 34 42 51 102 119 173 238 346 357 519 557 714 1038 1114 1211 1671 2422 2941 3342 3633 3899 5882 7266 7798 8823 9469 11697 17646 18938 20587 23394 28407 41174 56814 61761 66283 96361 123522 132566 192722 198849 289083 397698 578166 674527 1349054 1638137 2023581 3276274 4047162 4914411 9828822 11466959 22933918 34400877 68801754