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148405379 = 293691733
BaseRepresentation
bin10001101100001…
…11110010000011
3101100020202220112
420312013302003
5300442433004
622420501535
73451265513
oct1066076203
9340222815
10148405379
1176853181
124184a8ab
1324991145
14159d1843
15d066e6e
hex8d87c83

148405379 has 8 divisors (see below), whose sum is σ = 149330832. Its totient is φ = 147483360.

The previous prime is 148405357. The next prime is 148405391. The reversal of 148405379 is 973504841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-148405379 is a prime.

It is a super-2 number, since 2×1484053792 = 44048313032267282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148405319) 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 7 ways as a sum of consecutive naturals, for example, 202097 + ... + 202829.

It is an arithmetic number, because the mean of its divisors is an integer number (18666354).

Almost surely, 2148405379 is an apocalyptic number.

148405379 is a deficient number, since it is larger than the sum of its proper divisors (925453).

148405379 is an equidigital number, since it uses as much as digits as its factorization.

148405379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 148405379 is about 12182.1746416639. The cubic root of 148405379 is about 529.4397533078.

The spelling of 148405379 in words is "one hundred forty-eight million, four hundred five thousand, three hundred seventy-nine".

Divisors: 1 293 691 733 202463 214769 506503 148405379