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148894428 = 22312407869
BaseRepresentation
bin10001101111111…
…11001011011100
3101101011121202110
420313333023130
5301104110203
622435154020
73455403354
oct1067771334
9341147673
10148894428
1177057651
1241a45910
1324b02917
1415abbb64
15d111d03
hex8dff2dc

148894428 has 12 divisors (see below), whose sum is σ = 347420360. Its totient is φ = 49631472.

The previous prime is 148894397. The next prime is 148894441. The reversal of 148894428 is 824498841.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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, 6203923 + ... + 6203946.

Almost surely, 2148894428 is an apocalyptic number.

It is an amenable number.

148894428 is an abundant number, since it is smaller than the sum of its proper divisors (198525932).

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

148894428 is a wasteful number, since it uses less digits than its factorization.

148894428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12407876 (or 12407874 counting only the distinct ones).

The product of its digits is 589824, while the sum is 48.

The square root of 148894428 is about 12202.2304518477. The cubic root of 148894428 is about 530.0206803370.

The spelling of 148894428 in words is "one hundred forty-eight million, eight hundred ninety-four thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 12407869 24815738 37223607 49631476 74447214 148894428