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145711308 = 22312142609
BaseRepresentation
bin10001010111101…
…10000011001100
3101011011220100010
420223312003030
5244300230213
622243033220
73416345211
oct1053660314
9334156303
10145711308
1175283076
124096b810
1324259b12
14154cdb08
15cbd3ac3
hex8af60cc

145711308 has 12 divisors (see below), whose sum is σ = 339993080. Its totient is φ = 48570432.

The previous prime is 145711303. The next prime is 145711343. The reversal of 145711308 is 803117541.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (145711303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6071293 + ... + 6071316.

Almost surely, 2145711308 is an apocalyptic number.

It is an amenable number.

145711308 is an abundant number, since it is smaller than the sum of its proper divisors (194281772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145711308 is a wasteful number, since it uses less digits than its factorization.

145711308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12142616 (or 12142614 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 145711308 is about 12071.0939023769. The cubic root of 145711308 is about 526.2164481931.

Adding to 145711308 its reverse (803117541), we get a palindrome (948828849).

The spelling of 145711308 in words is "one hundred forty-five million, seven hundred eleven thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 12142609 24285218 36427827 48570436 72855654 145711308