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308036 = 22531453
BaseRepresentation
bin1001011001101000100
3120122112202
41023031010
534324121
610334032
72422031
oct1131504
9518482
10308036
111a0483
1212a318
13aa291
1480388
156140b
hex4b344

308036 has 12 divisors (see below), whose sum is σ = 549612. Its totient is φ = 151008.

The previous prime is 308027. The next prime is 308041. The reversal of 308036 is 630803.

It can be written as a sum of positive squares in 2 ways, for example, as 270400 + 37636 = 520^2 + 194^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 307999 and 308017.

It is an unprimeable number.

308036 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515 + ... + 938.

It is an arithmetic number, because the mean of its divisors is an integer number (45801).

2308036 is an apocalyptic number.

It is an amenable number.

308036 is a deficient number, since it is larger than the sum of its proper divisors (241576).

308036 is a wasteful number, since it uses less digits than its factorization.

308036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 308036 is about 555.0099098214. The cubic root of 308036 is about 67.5357652255.

Adding to 308036 its reverse (630803), we get a palindrome (938839).

The spelling of 308036 in words is "three hundred eight thousand, thirty-six".

Divisors: 1 2 4 53 106 212 1453 2906 5812 77009 154018 308036