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148830140 = 22514949943
BaseRepresentation
bin10001101111011…
…11011110111100
3101101001100120102
420313233132330
5301100031030
622433540232
73455015054
oct1067573674
9341040512
10148830140
1177013318
1241a14678
1324aac594
1415aa2564
15d0ecc45
hex8def7bc

148830140 has 24 divisors (see below), whose sum is σ = 314647200. Its totient is φ = 59131328.

The previous prime is 148830119. The next prime is 148830203. The reversal of 148830140 is 41038841.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21992 + ... + 27951.

It is an arithmetic number, because the mean of its divisors is an integer number (13110300).

Almost surely, 2148830140 is an apocalyptic number.

148830140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148830140 is an abundant number, since it is smaller than the sum of its proper divisors (165817060).

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

148830140 is a wasteful number, since it uses less digits than its factorization.

148830140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50101 (or 50099 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 148830140 is about 12199.5958949467. The cubic root of 148830140 is about 529.9443871872.

Adding to 148830140 its reverse (41038841), we get a palindrome (189868981).

The spelling of 148830140 in words is "one hundred forty-eight million, eight hundred thirty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 149 298 596 745 1490 2980 49943 99886 199772 249715 499430 998860 7441507 14883014 29766028 37207535 74415070 148830140