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30670214 = 2411512477
BaseRepresentation
bin111010011111…
…1110110000110
32010201012121212
41310333312012
530322421324
63013211422
7521456351
oct164776606
963635555
1030670214
1116348a93
12a330b72
13647b073
144105298
152a5c70e
hex1d3fd86

30670214 has 16 divisors (see below), whose sum is σ = 47458656. Its totient is φ = 14856000.

The previous prime is 30670183. The next prime is 30670217. The reversal of 30670214 is 41207603.

It is a self number, because there is not a number n which added to its sum of digits gives 30670214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30670217) 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, 11144 + ... + 13620.

It is an arithmetic number, because the mean of its divisors is an integer number (2966166).

Almost surely, 230670214 is an apocalyptic number.

30670214 is a deficient number, since it is larger than the sum of its proper divisors (16788442).

30670214 is a wasteful number, since it uses less digits than its factorization.

30670214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 30670214 is about 5538.0695192459. The cubic root of 30670214 is about 313.0201309239.

Adding to 30670214 its reverse (41207603), we get a palindrome (71877817).

The spelling of 30670214 in words is "thirty million, six hundred seventy thousand, two hundred fourteen".

Divisors: 1 2 41 82 151 302 2477 4954 6191 12382 101557 203114 374027 748054 15335107 30670214