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148089140 = 2257404457
BaseRepresentation
bin10001101001110…
…10100100110100
3101022122201002222
420310322210310
5300402323030
622410021512
73445510523
oct1064724464
9338581088
10148089140
1176657621
1241717898
13248b0214
141594c4ba
15d0033e5
hex8d3a934

148089140 has 12 divisors (see below), whose sum is σ = 310987236. Its totient is φ = 59235648.

The previous prime is 148089131. The next prime is 148089143. The reversal of 148089140 is 41980841.

It can be written as a sum of positive squares in 2 ways, for example, as 80389156 + 67699984 = 8966^2 + 8228^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 148089140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148089143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3702209 + ... + 3702248.

It is an arithmetic number, because the mean of its divisors is an integer number (25915603).

Almost surely, 2148089140 is an apocalyptic number.

148089140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148089140 is an abundant number, since it is smaller than the sum of its proper divisors (162898096).

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

148089140 is a wasteful number, since it uses less digits than its factorization.

148089140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7404466 (or 7404464 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 148089140 is about 12169.1881405458. The cubic root of 148089140 is about 529.0634224627.

The spelling of 148089140 in words is "one hundred forty-eight million, eighty-nine thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 7404457 14808914 29617828 37022285 74044570 148089140