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148770020 = 22571062643
BaseRepresentation
bin10001101111000…
…00110011100100
3101100221022002202
420313200303210
5301041120040
622432354032
73454344560
oct1067406344
9340838082
10148770020
1176a82133
12419a5918
1324a8b0c9
1415a886a0
15d0da015
hex8de0ce4

148770020 has 24 divisors (see below), whose sum is σ = 357048384. Its totient is φ = 51006816.

The previous prime is 148769983. The next prime is 148770031. The reversal of 148770020 is 20077841.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 531182 + ... + 531461.

It is an arithmetic number, because the mean of its divisors is an integer number (14877016).

Almost surely, 2148770020 is an apocalyptic number.

148770020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148770020 is an abundant number, since it is smaller than the sum of its proper divisors (208278364).

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

148770020 is a wasteful number, since it uses less digits than its factorization.

148770020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062659 (or 1062657 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 148770020 is about 12197.1316300186. The cubic root of 148770020 is about 529.8730204880.

The spelling of 148770020 in words is "one hundred forty-eight million, seven hundred seventy thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1062643 2125286 4250572 5313215 7438501 10626430 14877002 21252860 29754004 37192505 74385010 148770020