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148888340 = 22535321089
BaseRepresentation
bin10001101111111…
…01101100010100
3101101011022101222
420313331230110
5301103411330
622435105512
73455346536
oct1067755424
9341138358
10148888340
1177053017
1241a42298
1324accc13
1415ab9856
15d1100e5
hex8dfdb14

148888340 has 24 divisors (see below), whose sum is σ = 313566120. Its totient is φ = 59383808.

The previous prime is 148888309. The next prime is 148888357. The reversal of 148888340 is 43888841.

It can be written as a sum of positive squares in 4 ways, for example, as 49168144 + 99720196 = 7012^2 + 9986^2 .

It is a junction number, because it is equal to n+sod(n) for n = 148888291 and 148888300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3485 + ... + 17604.

It is an arithmetic number, because the mean of its divisors is an integer number (13065255).

Almost surely, 2148888340 is an apocalyptic number.

148888340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148888340 is an abundant number, since it is smaller than the sum of its proper divisors (164677780).

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

148888340 is a wasteful number, since it uses less digits than its factorization.

148888340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21451 (or 21449 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 44.

The square root of 148888340 is about 12201.9809867087. The cubic root of 148888340 is about 530.0134564045.

The spelling of 148888340 in words is "one hundred forty-eight million, eight hundred eighty-eight thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 353 706 1412 1765 3530 7060 21089 42178 84356 105445 210890 421780 7444417 14888834 29777668 37222085 74444170 148888340