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86172148 = 2260735491
BaseRepresentation
bin1010010001011…
…10000111110100
320000010222222001
411020232013310
5134030002043
612314545044
72064310516
oct510560764
9200128861
1086172148
1144707457
1224a38184
1314b1184a
14b631bb6
15787274d
hex522e1f4

86172148 has 12 divisors (see below), whose sum is σ = 151053952. Its totient is φ = 43013880.

The previous prime is 86172143. The next prime is 86172259. The reversal of 86172148 is 84127168.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86172143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15318 + ... + 20173.

Almost surely, 286172148 is an apocalyptic number.

It is an amenable number.

86172148 is a deficient number, since it is larger than the sum of its proper divisors (64881804).

86172148 is a wasteful number, since it uses less digits than its factorization.

86172148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36102 (or 36100 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 86172148 is about 9282.8954534671. The cubic root of 86172148 is about 441.6948201507.

It can be divided in two parts, 86172 and 148, that added together give a triangular number (86320 = T415).

The spelling of 86172148 in words is "eighty-six million, one hundred seventy-two thousand, one hundred forty-eight".

Divisors: 1 2 4 607 1214 2428 35491 70982 141964 21543037 43086074 86172148