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148864725 = 3252661621
BaseRepresentation
bin10001101111101…
…11111011010101
3101101010010000100
420313313323111
5301102132400
622434404313
73455220642
oct1067677325
9341103010
10148864725
11770372a9
1241a30699
1324ac2249
1415ab0dc9
15d108100
hex8df7ed5

148864725 has 18 divisors (see below), whose sum is σ = 266633666. Its totient is φ = 79394400.

The previous prime is 148864711. The next prime is 148864741. The reversal of 148864725 is 527468841.

It can be written as a sum of positive squares in 3 ways, for example, as 324 + 148864401 = 18^2 + 12201^2 .

It is not a de Polignac number, because 148864725 - 29 = 148864213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 330586 + ... + 331035.

Almost surely, 2148864725 is an apocalyptic number.

148864725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

148864725 is a deficient number, since it is larger than the sum of its proper divisors (117768941).

148864725 is a wasteful number, since it uses less digits than its factorization.

148864725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661637 (or 661629 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 148864725 is about 12201.0132775930. The cubic root of 148864725 is about 529.9854333246.

The spelling of 148864725 in words is "one hundred forty-eight million, eight hundred sixty-four thousand, seven hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 661621 1984863 3308105 5954589 9924315 16540525 29772945 49621575 148864725