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30355214 = 215177607
BaseRepresentation
bin111001111001…
…0111100001110
32010010012112012
41303302330032
530232331324
63002341222
7516005111
oct163627416
963105465
1030355214
111615335a
12a1ba812
13639a886
144062578
1529e920e
hex1cf2f0e

30355214 has 4 divisors (see below), whose sum is σ = 45532824. Its totient is φ = 15177606.

The previous prime is 30355201. The next prime is 30355223. The reversal of 30355214 is 41255303.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30355214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7588802 + ... + 7588805.

It is an arithmetic number, because the mean of its divisors is an integer number (11383206).

Almost surely, 230355214 is an apocalyptic number.

30355214 is a deficient number, since it is larger than the sum of its proper divisors (15177610).

30355214 is a wasteful number, since it uses less digits than its factorization.

30355214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15177609.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 30355214 is about 5509.5566064793. The cubic root of 30355214 is about 311.9448113539.

The spelling of 30355214 in words is "thirty million, three hundred fifty-five thousand, two hundred fourteen".

Divisors: 1 2 15177607 30355214