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148230390 = 235721189103
BaseRepresentation
bin10001101010111…
…01000011110110
3101022220212212110
420311131003312
5300421333030
622413031450
73446636400
oct1065350366
9338825773
10148230390
1176743760
1241785586
132492c5b9
1415987b70
15d0301b0
hex8d5d0f6

148230390 has 192 divisors, whose sum is σ = 460961280. Its totient is φ = 30159360.

The previous prime is 148230389. The next prime is 148230403. The reversal of 148230390 is 93032841.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1439079 + ... + 1439181.

It is an arithmetic number, because the mean of its divisors is an integer number (2400840).

Almost surely, 2148230390 is an apocalyptic number.

148230390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 148230390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230480640).

148230390 is an abundant number, since it is smaller than the sum of its proper divisors (312730890).

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

148230390 is a wasteful number, since it uses less digits than its factorization.

148230390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 148230390 is about 12174.9903490722. The cubic root of 148230390 is about 529.2315789783.

The spelling of 148230390 in words is "one hundred forty-eight million, two hundred thirty thousand, three hundred ninety".