Search a number
-
+
308252828 = 221337915641
BaseRepresentation
bin10010010111111…
…001000010011100
3210111000212101102
4102113321002130
51112403042303
650330532232
710432051202
oct2227710234
9714025342
10308252828
11149000a04
1287297078
134bb2a330
142cd21072
151c0de288
hex125f909c

308252828 has 24 divisors (see below), whose sum is σ = 582508080. Its totient is φ = 141886080.

The previous prime is 308252821. The next prime is 308252887. The reversal of 308252828 is 828252803.

It is a junction number, because it is equal to n+sod(n) for n = 308252791 and 308252800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308252821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11888 + ... + 27528.

It is an arithmetic number, because the mean of its divisors is an integer number (24271170).

Almost surely, 2308252828 is an apocalyptic number.

It is an amenable number.

308252828 is a deficient number, since it is larger than the sum of its proper divisors (274255252).

308252828 is a wasteful number, since it uses less digits than its factorization.

308252828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16037 (or 16035 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 308252828 is about 17557.1304033433. The cubic root of 308252828 is about 675.5160775726.

The spelling of 308252828 in words is "three hundred eight million, two hundred fifty-two thousand, eight hundred twenty-eight".

Divisors: 1 2 4 13 26 52 379 758 1516 4927 9854 15641 19708 31282 62564 203333 406666 813332 5927939 11855878 23711756 77063207 154126414 308252828