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12308248 = 231538531
BaseRepresentation
bin101110111100…
…111100011000
3212011022202001
4232330330120
511122330443
61115450344
7206422051
oct56747430
925138661
1012308248
116a47407
1241569b4
13271c3b4
1418c5728
151131d4d
hexbbcf18

12308248 has 8 divisors (see below), whose sum is σ = 23077980. Its totient is φ = 6154120.

The previous prime is 12308237. The next prime is 12308249. The reversal of 12308248 is 84280321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12308249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769258 + ... + 769273.

Almost surely, 212308248 is an apocalyptic number.

It is an amenable number.

12308248 is a deficient number, since it is larger than the sum of its proper divisors (10769732).

12308248 is a wasteful number, since it uses less digits than its factorization.

12308248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538537 (or 1538533 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 12308248 is about 3508.3112746733. The cubic root of 12308248 is about 230.8866093917.

Adding to 12308248 its reverse (84280321), we get a palindrome (96588569).

The spelling of 12308248 in words is "twelve million, three hundred eight thousand, two hundred forty-eight".

Divisors: 1 2 4 8 1538531 3077062 6154124 12308248