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86677481 = 1183139683
BaseRepresentation
bin1010010101010…
…01011111101001
320001002200011002
411022221133221
5134142134411
612333444345
72101514012
oct512513751
9201080132
1086677481
1144a22090
12250406b5
1314c5a867
14b724009
15792233b
hex52a97e9

86677481 has 16 divisors (see below), whose sum is σ = 96526080. Its totient is φ = 77175120.

The previous prime is 86677471. The next prime is 86677489. The reversal of 86677481 is 18477668.

It is not a de Polignac number, because 86677481 - 214 = 86661097 is a prime.

It is a super-2 number, since 2×866774812 = 15025971425010722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86677489) 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, 126566 + ... + 127248.

It is an arithmetic number, because the mean of its divisors is an integer number (6032880).

Almost surely, 286677481 is an apocalyptic number.

It is an amenable number.

86677481 is a deficient number, since it is larger than the sum of its proper divisors (9848599).

86677481 is a wasteful number, since it uses less digits than its factorization.

86677481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916.

The product of its digits is 451584, while the sum is 47.

The square root of 86677481 is about 9310.0741672663. The cubic root of 86677481 is about 442.5565374045.

The spelling of 86677481 in words is "eighty-six million, six hundred seventy-seven thousand, four hundred eighty-one".

Divisors: 1 11 83 139 683 913 1529 7513 11537 56689 94937 126907 623579 1044307 7879771 86677481