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148086481 = 149993869
BaseRepresentation
bin10001101001110…
…01111011010001
3101022122120110111
420310321323101
5300402231411
622410001321
73445500004
oct1064717321
9338576414
10148086481
1176655624
1241716241
13248abc4a
141594b53b
15d002721
hex8d39ed1

148086481 has 4 divisors (see below), whose sum is σ = 149080500. Its totient is φ = 147092464.

The previous prime is 148086479. The next prime is 148086511. The reversal of 148086481 is 184680841.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 90554256 + 57532225 = 9516^2 + 7585^2 .

It is a cyclic number.

It is not a de Polignac number, because 148086481 - 21 = 148086479 is a prime.

It is a super-2 number, since 2×1480864812 = 43859211709926722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148086781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496786 + ... + 497083.

It is an arithmetic number, because the mean of its divisors is an integer number (37270125).

Almost surely, 2148086481 is an apocalyptic number.

It is an amenable number.

148086481 is a deficient number, since it is larger than the sum of its proper divisors (994019).

148086481 is an equidigital number, since it uses as much as digits as its factorization.

148086481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994018.

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 148086481 is about 12169.0788887245. The cubic root of 148086481 is about 529.0602559284.

The spelling of 148086481 in words is "one hundred forty-eight million, eighty-six thousand, four hundred eighty-one".

Divisors: 1 149 993869 148086481