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8678631492 = 2233235365921
BaseRepresentation
bin10000001010100100…
…10110100001000100
3211101211101011022000
420011102112201010
5120233212201432
63553101105300
7425031102426
oct100522264104
924354334260
108678631492
113753952323
121822558230
13a8401020b
145c487c816
1535bd9b57c
hex205496844

8678631492 has 96 divisors (see below), whose sum is σ = 23921775360. Its totient is φ = 2714849280.

The previous prime is 8678631473. The next prime is 8678631503. The reversal of 8678631492 is 2941368768.

8678631492 is a `hidden beast` number, since 86 + 78 + 6 + 3 + 1 + 492 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 31 ways as a sum of consecutive naturals, for example, 98692 + ... + 164612.

It is an arithmetic number, because the mean of its divisors is an integer number (249185160).

Almost surely, 28678631492 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 8678631492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11960887680).

8678631492 is an abundant number, since it is smaller than the sum of its proper divisors (15243143868).

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

8678631492 is a wasteful number, since it uses less digits than its factorization.

8678631492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66010 (or 66002 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 8678631492 is about 93159.1728816868. The cubic root of 8678631492 is about 2055.0248726277.

The spelling of 8678631492 in words is "eight billion, six hundred seventy-eight million, six hundred thirty-one thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 23 27 36 46 53 54 69 92 106 108 138 159 207 212 276 318 414 477 621 636 828 954 1219 1242 1431 1908 2438 2484 2862 3657 4876 5724 7314 10971 14628 21942 32913 43884 65826 65921 131652 131842 197763 263684 395526 593289 791052 1186578 1516183 1779867 2373156 3032366 3493813 3559734 4548549 6064732 6987626 7119468 9097098 10481439 13645647 13975252 18194196 20962878 27291294 31444317 40936941 41925756 54582588 62888634 80357699 81873882 94332951 125777268 160715398 163747764 188665902 241073097 321430796 377331804 482146194 723219291 964292388 1446438582 2169657873 2892877164 4339315746 8678631492