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148918280 = 2357975483
BaseRepresentation
bin10001110000001…
…01000000001000
3101101012211110212
420320011000020
5301110341110
622435500252
73455533040
oct1070050010
9341184425
10148918280
1177073565
1241a57688
1324b10734
1415ac6720
15d118e05
hex8e05008

148918280 has 64 divisors (see below), whose sum is σ = 386951040. Its totient is φ = 50522112.

The previous prime is 148918243. The next prime is 148918291. The reversal of 148918280 is 82819841.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24419 + ... + 29901.

It is an arithmetic number, because the mean of its divisors is an integer number (6046110).

Almost surely, 2148918280 is an apocalyptic number.

148918280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148918280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193475520).

148918280 is an abundant number, since it is smaller than the sum of its proper divisors (238032760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148918280 is a wasteful number, since it uses less digits than its factorization.

148918280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5598 (or 5594 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 41.

The square root of 148918280 is about 12203.2077750074. The cubic root of 148918280 is about 530.0489808773.

The spelling of 148918280 in words is "one hundred forty-eight million, nine hundred eighteen thousand, two hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 97 140 194 280 388 485 679 776 970 1358 1940 2716 3395 3880 5432 5483 6790 10966 13580 21932 27160 27415 38381 43864 54830 76762 109660 153524 191905 219320 307048 383810 531851 767620 1063702 1535240 2127404 2659255 3722957 4254808 5318510 7445914 10637020 14891828 18614785 21274040 29783656 37229570 74459140 148918280