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149942485 = 5711389461
BaseRepresentation
bin10001110111111…
…11000011010101
3101110010212102101
420323333003111
5301341124420
622513442101
73500330050
oct1073770325
9343125371
10149942485
1177703010
1242270331
13250ab984
1415cb1a97
15d26c60a
hex8eff0d5

149942485 has 16 divisors (see below), whose sum is σ = 224330112. Its totient is φ = 93470400.

The previous prime is 149942477. The next prime is 149942489. The reversal of 149942485 is 584249941.

It is not a de Polignac number, because 149942485 - 23 = 149942477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149942489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194346 + ... + 195115.

It is an arithmetic number, because the mean of its divisors is an integer number (14020632).

Almost surely, 2149942485 is an apocalyptic number.

It is an amenable number.

149942485 is a deficient number, since it is larger than the sum of its proper divisors (74387627).

149942485 is a wasteful number, since it uses less digits than its factorization.

149942485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389484.

The product of its digits is 414720, while the sum is 46.

The square root of 149942485 is about 12245.1004487509. The cubic root of 149942485 is about 531.2613661236.

It can be divided in two parts, 14 and 9942485, that added together give a palindrome (9942499).

The spelling of 149942485 in words is "one hundred forty-nine million, nine hundred forty-two thousand, four hundred eighty-five".

Divisors: 1 5 7 11 35 55 77 385 389461 1947305 2726227 4284071 13631135 21420355 29988497 149942485