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148487933 = 1121227173
BaseRepresentation
bin10001101100110…
…11111011111101
3101100101222011002
420312123323331
5301003103213
622422340045
73452061266
oct1066337375
9340358132
10148487933
11768aa200
124188a625
13249bc8a9
1415a1396d
15d081658
hex8d9befd

148487933 has 6 divisors (see below), whose sum is σ = 163214142. Its totient is φ = 134988920.

The previous prime is 148487921. The next prime is 148487939. The reversal of 148487933 is 339784841.

It can be written as a sum of positive squares in only one way, i.e., 146942884 + 1545049 = 12122^2 + 1243^2 .

It is not a de Polignac number, because 148487933 - 210 = 148486909 is a prime.

It is a super-2 number, since 2×1484879332 = 44097332493224978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148487939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 613466 + ... + 613707.

It is an arithmetic number, because the mean of its divisors is an integer number (27202357).

Almost surely, 2148487933 is an apocalyptic number.

It is an amenable number.

148487933 is a deficient number, since it is larger than the sum of its proper divisors (14726209).

148487933 is a wasteful number, since it uses less digits than its factorization.

148487933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227195 (or 1227184 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 148487933 is about 12185.5624818881. The cubic root of 148487933 is about 529.5379062358.

The spelling of 148487933 in words is "one hundred forty-eight million, four hundred eighty-seven thousand, nine hundred thirty-three".

Divisors: 1 11 121 1227173 13498903 148487933