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149832185 = 529966437
BaseRepresentation
bin10001110111001…
…00000111111001
3101102221021010012
420323210013321
5301324112220
622511231305
73466360346
oct1073440771
9342837105
10149832185
1177638158
1242218535
13250706c9
1415c837cd
15d249ac5
hex8ee41f9

149832185 has 4 divisors (see below), whose sum is σ = 179798628. Its totient is φ = 119865744.

The previous prime is 149832173. The next prime is 149832197. The reversal of 149832185 is 581238941.

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

It is an interprime number because it is at equal distance from previous prime (149832173) and next prime (149832197).

It can be written as a sum of positive squares in 2 ways, for example, as 115691536 + 34140649 = 10756^2 + 5843^2 .

It is a cyclic number.

It is not a de Polignac number, because 149832185 - 26 = 149832121 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14983214 + ... + 14983223.

It is an arithmetic number, because the mean of its divisors is an integer number (44949657).

Almost surely, 2149832185 is an apocalyptic number.

It is an amenable number.

149832185 is a deficient number, since it is larger than the sum of its proper divisors (29966443).

149832185 is an equidigital number, since it uses as much as digits as its factorization.

149832185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29966442.

The product of its digits is 69120, while the sum is 41.

The square root of 149832185 is about 12240.5957779840. The cubic root of 149832185 is about 531.1310661553.

The spelling of 149832185 in words is "one hundred forty-nine million, eight hundred thirty-two thousand, one hundred eighty-five".

Divisors: 1 5 29966437 149832185