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148663388 = 22269138163
BaseRepresentation
bin10001101110001…
…10110001011100
3101100201212211102
420313012301130
5301024212023
622430212232
73453421646
oct1067066134
9340655742
10148663388
1176a0a005
1241954078
1324a51703
1415a5b896
15d0b8628
hex8dc6c5c

148663388 has 12 divisors (see below), whose sum is σ = 261129960. Its totient is φ = 74054832.

The previous prime is 148663381. The next prime is 148663393. The reversal of 148663388 is 883366841.

148663388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148663381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68006 + ... + 70157.

It is an arithmetic number, because the mean of its divisors is an integer number (21760830).

Almost surely, 2148663388 is an apocalyptic number.

It is an amenable number.

148663388 is a deficient number, since it is larger than the sum of its proper divisors (112466572).

148663388 is a wasteful number, since it uses less digits than its factorization.

148663388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138436 (or 138434 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The square root of 148663388 is about 12192.7596548115. The cubic root of 148663388 is about 529.7463934418.

The spelling of 148663388 in words is "one hundred forty-eight million, six hundred sixty-three thousand, three hundred eighty-eight".

Divisors: 1 2 4 269 538 1076 138163 276326 552652 37165847 74331694 148663388