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148720518 = 23268312097
BaseRepresentation
bin10001101110101…
…00101110000110
3101100211210012100
420313110232012
5301033024033
622431332530
73454050342
oct1067245606
9340753170
10148720518
1176a48a21
1241981146
1324a7170b
1415a74622
15d0ca513
hex8dd4b86

148720518 has 24 divisors (see below), whose sum is σ = 322726248. Its totient is φ = 49496832.

The previous prime is 148720499. The next prime is 148720541. The reversal of 148720518 is 815027841.

148720518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1487205183 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6246 + ... + 18342.

It is an arithmetic number, because the mean of its divisors is an integer number (13446927).

Almost surely, 2148720518 is an apocalyptic number.

148720518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

148720518 is an abundant number, since it is smaller than the sum of its proper divisors (174005730).

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

148720518 is a wasteful number, since it uses less digits than its factorization.

148720518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12788 (or 12785 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 148720518 is about 12195.1022135938. The cubic root of 148720518 is about 529.8142436725.

The spelling of 148720518 in words is "one hundred forty-eight million, seven hundred twenty thousand, five hundred eighteen".

Divisors: 1 2 3 6 9 18 683 1366 2049 4098 6147 12097 12294 24194 36291 72582 108873 217746 8262251 16524502 24786753 49573506 74360259 148720518