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30323808 = 253411699
BaseRepresentation
bin111001110101…
…1010001100000
32010001121110000
41303223101200
530230330213
63001540000
7515514414
oct163532140
963047400
1030323808
11161317a9
12a1a4600
1363894a8
144054d44
1529dec73
hex1ceb460

30323808 has 60 divisors (see below), whose sum is σ = 89189100. Its totient is φ = 10107072.

The previous prime is 30323807. The next prime is 30323809. The reversal of 30323808 is 80832303.

It is an interprime number because it is at equal distance from previous prime (30323807) and next prime (30323809).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30323803) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3258 + ... + 8441.

It is an arithmetic number, because the mean of its divisors is an integer number (1486485).

Almost surely, 230323808 is an apocalyptic number.

It is an amenable number.

30323808 is an abundant number, since it is smaller than the sum of its proper divisors (58865292).

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

30323808 is a wasteful number, since it uses less digits than its factorization.

30323808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11721 (or 11704 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 30323808 is about 5506.7057302892. The cubic root of 30323808 is about 311.8371931659.

The spelling of 30323808 in words is "thirty million, three hundred twenty-three thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 216 288 324 432 648 864 1296 2592 11699 23398 35097 46796 70194 93592 105291 140388 187184 210582 280776 315873 374368 421164 561552 631746 842328 947619 1123104 1263492 1684656 1895238 2526984 3369312 3790476 5053968 7580952 10107936 15161904 30323808