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30470808 = 2332335449
BaseRepresentation
bin111010000111…
…1001010011000
32010100002002110
41310033022120
530300031213
63005032320
7516666114
oct164171230
963302073
1030470808
1116222195
12a2556a0
13640b384
144092744
152a1d5c3
hex1d0f298

30470808 has 32 divisors (see below), whose sum is σ = 76518000. Its totient is φ = 10111488.

The previous prime is 30470801. The next prime is 30470809. The reversal of 30470808 is 80807403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30470801) 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, 2868 + ... + 8316.

Almost surely, 230470808 is an apocalyptic number.

It is an amenable number.

30470808 is an abundant number, since it is smaller than the sum of its proper divisors (46047192).

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

30470808 is a wasteful number, since it uses less digits than its factorization.

30470808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5691 (or 5687 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 30470808 is about 5520.0369563980. The cubic root of 30470808 is about 312.3402763500.

The spelling of 30470808 in words is "thirty million, four hundred seventy thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 24 233 466 699 932 1398 1864 2796 5449 5592 10898 16347 21796 32694 43592 65388 130776 1269617 2539234 3808851 5078468 7617702 10156936 15235404 30470808