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148354229 = 521284749
BaseRepresentation
bin10001101011110…
…11010010110101
3101100011011202002
420311323102311
5300434313404
622415425045
73450663422
oct1065732265
9340134662
10148354229
1176818801
1241825185
1324973a8a
14159bad49
15d056c1e
hex8d7b4b5

148354229 has 4 divisors (see below), whose sum is σ = 148639500. Its totient is φ = 148068960.

The previous prime is 148354211. The next prime is 148354249. The reversal of 148354229 is 922453841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 922453841 = 1547359617.

It can be written as a sum of positive squares in 2 ways, for example, as 71791729 + 76562500 = 8473^2 + 8750^2 .

It is a cyclic number.

It is not a de Polignac number, because 148354229 - 28 = 148353973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 148354192 and 148354201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148354249) 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, 141854 + ... + 142895.

It is an arithmetic number, because the mean of its divisors is an integer number (37159875).

Almost surely, 2148354229 is an apocalyptic number.

It is an amenable number.

148354229 is a deficient number, since it is larger than the sum of its proper divisors (285271).

148354229 is an equidigital number, since it uses as much as digits as its factorization.

148354229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285270.

The product of its digits is 69120, while the sum is 38.

The square root of 148354229 is about 12180.0750818704. The cubic root of 148354229 is about 529.3789200338.

The spelling of 148354229 in words is "one hundred forty-eight million, three hundred fifty-four thousand, two hundred twenty-nine".

Divisors: 1 521 284749 148354229