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86109149 = 729214627
BaseRepresentation
bin1010010000111…
…10101111011101
320000000210112202
411020132233131
5134020443044
612313341245
72063626040
oct510365735
9200023482
1086109149
1144674095
1224a07825
1314abbc79
14b616c57
15785dc4e
hex521ebdd

86109149 has 12 divisors (see below), whose sum is σ = 101927904. Its totient is φ = 71257872.

The previous prime is 86109077. The next prime is 86109157. The reversal of 86109149 is 94190168.

It is a happy number.

It is not a de Polignac number, because 86109149 - 212 = 86105053 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86109169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1427 + ... + 13200.

It is an arithmetic number, because the mean of its divisors is an integer number (8493992).

Almost surely, 286109149 is an apocalyptic number.

It is an amenable number.

86109149 is a deficient number, since it is larger than the sum of its proper divisors (15818755).

86109149 is a wasteful number, since it uses less digits than its factorization.

86109149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14692 (or 14663 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 86109149 is about 9279.5015491135. The cubic root of 86109149 is about 441.5871553715.

The spelling of 86109149 in words is "eighty-six million, one hundred nine thousand, one hundred forty-nine".

Divisors: 1 7 29 203 841 5887 14627 102389 424183 2969281 12301307 86109149