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146287349 = 1397116009
BaseRepresentation
bin10001011100000…
…10101011110101
3101012021011111222
420232002223311
5244422143344
622303240125
73424264505
oct1056025365
9335234458
10146287349
117563693a
1240ba9045
13243cc080
14155dda05
15cc995ee
hex8b82af5

146287349 has 8 divisors (see below), whose sum is σ = 159165720. Its totient is φ = 133641216.

The previous prime is 146287279. The next prime is 146287391. The reversal of 146287349 is 943782641.

146287349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 964324 + 145323025 = 982^2 + 12055^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 146287349 - 220 = 145238773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146287399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56744 + ... + 59265.

It is an arithmetic number, because the mean of its divisors is an integer number (19895715).

Almost surely, 2146287349 is an apocalyptic number.

It is an amenable number.

146287349 is a deficient number, since it is larger than the sum of its proper divisors (12878371).

146287349 is a wasteful number, since it uses less digits than its factorization.

146287349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116119.

The product of its digits is 290304, while the sum is 44.

The square root of 146287349 is about 12094.9307149731. The cubic root of 146287349 is about 526.9089674937.

The spelling of 146287349 in words is "one hundred forty-six million, two hundred eighty-seven thousand, three hundred forty-nine".

Divisors: 1 13 97 1261 116009 1508117 11252873 146287349