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148105490 = 25131139273
BaseRepresentation
bin10001101001111…
…10100100010010
3101022200112112112
420310332210102
5300403333430
622410225322
73445606301
oct1064764422
9338615475
10148105490
1176668935
1241725242
13248b77b0
1415954438
15d008195
hex8d3e912

148105490 has 16 divisors (see below), whose sum is σ = 287097048. Its totient is φ = 54685056.

The previous prime is 148105483. The next prime is 148105511. The reversal of 148105490 is 94501841.

It can be written as a sum of positive squares in 4 ways, for example, as 135792409 + 12313081 = 11653^2 + 3509^2 .

It is an unprimeable number.

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, 569507 + ... + 569766.

Almost surely, 2148105490 is an apocalyptic number.

148105490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148105490 is a deficient number, since it is larger than the sum of its proper divisors (138991558).

148105490 is a wasteful number, since it uses less digits than its factorization.

148105490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139293.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 148105490 is about 12169.8599005905. The cubic root of 148105490 is about 529.0828924221.

The spelling of 148105490 in words is "one hundred forty-eight million, one hundred five thousand, four hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 1139273 2278546 5696365 11392730 14810549 29621098 74052745 148105490