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8672662768 = 2471123712969
BaseRepresentation
bin10000001001110111…
…00101010011110000
3211101102010220202011
420010323211103300
5120230200202033
63552325132304
7424626263050
oct100473452360
924342126664
108672662768
1137505459a0
12182055a094
13a82a00523
145c3b67560
1535b5bcccd
hex204ee54f0

8672662768 has 80 divisors (see below), whose sum is σ = 20965443840. Its totient is φ = 3376396800.

The previous prime is 8672662753. The next prime is 8672662769.

8672662768 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8672662769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2919588 + ... + 2922556.

It is an arithmetic number, because the mean of its divisors is an integer number (262068048).

Almost surely, 28672662768 is an apocalyptic number.

8672662768 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8672662768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10482721920).

8672662768 is an abundant number, since it is smaller than the sum of its proper divisors (12292781072).

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

8672662768 is a wasteful number, since it uses less digits than its factorization.

8672662768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5366 (or 5360 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 58.

The square root of 8672662768 is about 93127.1322869979. The cubic root of 8672662768 is about 2054.5536505111.

The spelling of 8672662768 in words is "eight billion, six hundred seventy-two million, six hundred sixty-two thousand, seven hundred sixty-eight".

Divisors: 1 2 4 7 8 11 14 16 22 28 44 56 77 88 112 154 176 308 616 1232 2371 2969 4742 5938 9484 11876 16597 18968 20783 23752 26081 32659 33194 37936 41566 47504 52162 65318 66388 83132 104324 130636 132776 166264 182567 208648 228613 261272 265552 332528 365134 417296 457226 522544 730268 914452 1460536 1828904 2921072 3657808 7039499 14078998 28157996 49276493 56315992 77434489 98552986 112631984 154868978 197105972 309737956 394211944 542041423 619475912 788423888 1084082846 1238951824 2168165692 4336331384 8672662768