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86280117555853 = 136636932119681
BaseRepresentation
bin10011100111100010100111…
…110000100001001010001101
3102022111022001201222210100001
4103213202213300201022031
542302103140043241403
6503300312215004301
724113350513431544
oct2347424760411215
9368438051883301
1086280117555853
1125545213051271
1298157b8969691
13391b245ac5560
141743da108115b
159e95257d5c1d
hex4e78a7c2128d

86280117555853 has 4 divisors (see below), whose sum is σ = 92917049675548. Its totient is φ = 79643185436160.

The previous prime is 86280117555839. The next prime is 86280117555937. The reversal of 86280117555853 is 35855571108268.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43243539264324 + 43036578291529 = 6575982^2 + 6560227^2 .

It is a cyclic number.

It is not a de Polignac number, because 86280117555853 - 245 = 51095745467021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86280117555803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3318466059828 + ... + 3318466059853.

It is an arithmetic number, because the mean of its divisors is an integer number (23229262418887).

Almost surely, 286280117555853 is an apocalyptic number.

It is an amenable number.

86280117555853 is a deficient number, since it is larger than the sum of its proper divisors (6636932119695).

86280117555853 is a wasteful number, since it uses less digits than its factorization.

86280117555853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6636932119694.

The product of its (nonzero) digits is 80640000, while the sum is 64.

The spelling of 86280117555853 in words is "eighty-six trillion, two hundred eighty billion, one hundred seventeen million, five hundred fifty-five thousand, eight hundred fifty-three".

Divisors: 1 13 6636932119681 86280117555853