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20748148 = 2248710651
BaseRepresentation
bin100111100100…
…1011101110100
31110001010002221
41033021131310
520302420043
62020412124
7341233141
oct117113564
943033087
1020748148
1110791433
126b47044
1343b5b15
142a813c8
151c4c8ed
hex13c9774

20748148 has 12 divisors (see below), whose sum is σ = 36387232. Its totient is φ = 10351800.

The previous prime is 20748121. The next prime is 20748151. The reversal of 20748148 is 84184702.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3378 + ... + 7273.

Almost surely, 220748148 is an apocalyptic number.

It is an amenable number.

20748148 is a deficient number, since it is larger than the sum of its proper divisors (15639084).

20748148 is a wasteful number, since it uses less digits than its factorization.

20748148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11142 (or 11140 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 20748148 is about 4555.0135016265. The cubic root of 20748148 is about 274.7850573869.

The spelling of 20748148 in words is "twenty million, seven hundred forty-eight thousand, one hundred forty-eight".

Divisors: 1 2 4 487 974 1948 10651 21302 42604 5187037 10374074 20748148