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148500390 = 23519260527
BaseRepresentation
bin10001101100111…
…10111110100110
3101100102121020110
420312132332212
5301004003030
622422513450
73452142513
oct1066367646
9340377213
10148500390
11769085a5
1241895886
13249c546c
1415a1830a
15d0851b0
hex8d9efa6

148500390 has 32 divisors (see below), whose sum is σ = 375160320. Its totient is φ = 37515744.

The previous prime is 148500379. The next prime is 148500427. The reversal of 148500390 is 93005841.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129694 + ... + 130833.

It is an arithmetic number, because the mean of its divisors is an integer number (11723760).

Almost surely, 2148500390 is an apocalyptic number.

148500390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148500390 is an abundant number, since it is smaller than the sum of its proper divisors (226659930).

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

148500390 is a wasteful number, since it uses less digits than its factorization.

148500390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260556.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 148500390 is about 12186.0736088373. The cubic root of 148500390 is about 529.5527138796.

The spelling of 148500390 in words is "one hundred forty-eight million, five hundred thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 260527 521054 781581 1302635 1563162 2605270 3907905 4950013 7815810 9900026 14850039 24750065 29700078 49500130 74250195 148500390