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86018055 = 358964433
BaseRepresentation
bin1010010000010…
…00100000000111
312222212011120220
411020020200013
5134010034210
612311355423
72063066334
oct510104007
9188764526
1086018055
1144611702
1224982b73
1314a89676
14b5d198b
157841c70
hex5208807

86018055 has 16 divisors (see below), whose sum is σ = 139177440. Its totient is φ = 45360128.

The previous prime is 86018029. The next prime is 86018057. The reversal of 86018055 is 55081068.

It is a cyclic number.

It is not a de Polignac number, because 86018055 - 27 = 86017927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86018057) 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, 30882 + ... + 33551.

It is an arithmetic number, because the mean of its divisors is an integer number (8698590).

Almost surely, 286018055 is an apocalyptic number.

86018055 is a deficient number, since it is larger than the sum of its proper divisors (53159385).

86018055 is a wasteful number, since it uses less digits than its factorization.

86018055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64530.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 86018055 is about 9274.5919047686. The cubic root of 86018055 is about 441.4313835633.

It can be divided in two parts, 860 and 18055, that added together give a triangular number (18915 = T194).

The spelling of 86018055 in words is "eighty-six million, eighteen thousand, fifty-five".

Divisors: 1 3 5 15 89 267 445 1335 64433 193299 322165 966495 5734537 17203611 28672685 86018055