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30823168 = 28196337
BaseRepresentation
bin111010110010…
…1001100000000
32010222222102211
41311211030000
530342320133
63020351504
7522664315
oct165451400
963888384
1030823168
11164429a2
12a3a5594
13650287c
144144d0c
152a8cbcd
hex1d65300

30823168 has 36 divisors (see below), whose sum is σ = 64774360. Its totient is φ = 14598144.

The previous prime is 30823147. The next prime is 30823181. The reversal of 30823168 is 86132803.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1696 + ... + 8032.

Almost surely, 230823168 is an apocalyptic number.

30823168 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30823168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32387180).

30823168 is an abundant number, since it is smaller than the sum of its proper divisors (33951192).

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

30823168 is an equidigital number, since it uses as much as digits as its factorization.

30823168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6372 (or 6358 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 30823168 is about 5551.8616697465. The cubic root of 30823168 is about 313.5396176955.

The spelling of 30823168 in words is "thirty million, eight hundred twenty-three thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 16 19 32 38 64 76 128 152 256 304 608 1216 2432 4864 6337 12674 25348 50696 101392 120403 202784 240806 405568 481612 811136 963224 1622272 1926448 3852896 7705792 15411584 30823168