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30970534 = 272212181
BaseRepresentation
bin111011000100…
…1001010100110
32011021110120211
41312021022212
530412024114
63023450034
7524150050
oct166111246
964243524
1030970534
1116533691
12a45691a
13655497a
1441828d0
152abb6c4
hex1d892a6

30970534 has 8 divisors (see below), whose sum is σ = 53092368. Its totient is φ = 13273080.

The previous prime is 30970501. The next prime is 30970543. The reversal of 30970534 is 43507903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30970496 and 30970505.

It is a congruent number.

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, 1106077 + ... + 1106104.

It is an arithmetic number, because the mean of its divisors is an integer number (6636546).

Almost surely, 230970534 is an apocalyptic number.

30970534 is a deficient number, since it is larger than the sum of its proper divisors (22121834).

30970534 is a wasteful number, since it uses less digits than its factorization.

30970534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212190.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 30970534 is about 5565.1176088201. The cubic root of 30970534 is about 314.0385025879.

The spelling of 30970534 in words is "thirty million, nine hundred seventy thousand, five hundred thirty-four".

Divisors: 1 2 7 14 2212181 4424362 15485267 30970534