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146309207 = 1121279521
BaseRepresentation
bin10001011100010…
…00000001010111
3101012022021111112
420232020001113
5244423343312
622303525235
73424415312
oct1056100127
9335267445
10146309207
1175651300
1240bb981b
1324408cc5
1415607979
15cca0d22
hex8b88057

146309207 has 12 divisors (see below), whose sum is σ = 162102528. Its totient is φ = 131947200.

The previous prime is 146309183. The next prime is 146309213. The reversal of 146309207 is 702903641.

It is not a de Polignac number, because 146309207 - 26 = 146309143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146309227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10607 + ... + 20127.

It is an arithmetic number, because the mean of its divisors is an integer number (13508544).

Almost surely, 2146309207 is an apocalyptic number.

146309207 is a deficient number, since it is larger than the sum of its proper divisors (15793321).

146309207 is a wasteful number, since it uses less digits than its factorization.

146309207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9670 (or 9659 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 146309207 is about 12095.8342829257. The cubic root of 146309207 is about 526.9352094590.

The spelling of 146309207 in words is "one hundred forty-six million, three hundred nine thousand, two hundred seven".

Divisors: 1 11 121 127 1397 9521 15367 104731 1152041 1209167 13300837 146309207