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308264 = 231131113
BaseRepresentation
bin1001011010000101000
3120122212012
41023100220
534331024
610335052
72422505
oct1132050
9518765
10308264
111a0670
1212a488
13aa408
14804ac
156150e
hex4b428

308264 has 32 divisors (see below), whose sum is σ = 656640. Its totient is φ = 134400.

The previous prime is 308263. The next prime is 308291. The reversal of 308264 is 462803.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2672 + ... + 2784.

It is an arithmetic number, because the mean of its divisors is an integer number (20520).

2308264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328320).

308264 is an abundant number, since it is smaller than the sum of its proper divisors (348376).

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

308264 is a wasteful number, since it uses less digits than its factorization.

308264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 308264 is about 555.2152735651. The cubic root of 308264 is about 67.5524238378.

The spelling of 308264 in words is "three hundred eight thousand, two hundred sixty-four".

Divisors: 1 2 4 8 11 22 31 44 62 88 113 124 226 248 341 452 682 904 1243 1364 2486 2728 3503 4972 7006 9944 14012 28024 38533 77066 154132 308264