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86554845568 = 2717731094999
BaseRepresentation
bin101000010011100010…
…0100010000110000000
322021102011012201201001
41100213010202012000
52404231020024233
6103432430421344
76152624022352
oct1204704420600
9267364181631
1086554845568
1133786a54624
1214937061854
138215149769
1442915390d2
1523b8ba527d
hex1427122180

86554845568 has 128 divisors (see below), whose sum is σ = 186813000000. Its totient is φ = 39797194752.

The previous prime is 86554845527. The next prime is 86554845581.

86554845568 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

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, 17311933 + ... + 17316931.

Almost surely, 286554845568 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 86554845568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93406500000).

86554845568 is an abundant number, since it is smaller than the sum of its proper divisors (100258154432).

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

86554845568 is a wasteful number, since it uses less digits than its factorization.

86554845568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5212 (or 5200 counting only the distinct ones).

The product of its digits is 184320000, while the sum is 64.

The spelling of 86554845568 in words is "eighty-six billion, five hundred fifty-four million, eight hundred forty-five thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 16 17 32 34 64 68 73 109 128 136 146 218 272 292 436 544 584 872 1088 1168 1241 1744 1853 2176 2336 2482 3488 3706 4672 4964 4999 6976 7412 7957 9344 9928 9998 13952 14824 15914 19856 19996 29648 31828 39712 39992 59296 63656 79424 79984 84983 118592 127312 135269 158848 159968 169966 237184 254624 270538 319936 339932 364927 509248 541076 544891 639872 679864 729854 1018496 1082152 1089782 1359728 1459708 2164304 2179564 2719456 2919416 4328608 4359128 5438912 5838832 6203759 8657216 8718256 9263147 10877824 11677664 12407518 17314432 17436512 18526294 23355328 24815036 34873024 37052588 39777043 46710656 49630072 69746048 74105176 79554086 99260144 148210352 159108172 198520288 296420704 318216344 397040576 592841408 636432688 676209731 794081152 1185682816 1272865376 1352419462 2545730752 2704838924 5091461504 5409677848 10819355696 21638711392 43277422784 86554845568