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30387914 = 235942323
BaseRepresentation
bin111001111101…
…0111011001010
32010011212101022
41303322323022
530234403124
63003152442
7516202334
oct163727312
963155338
1030387914
1116175987
12a215722
1363ac71b
144070454
152a03c5e
hex1cfaeca

30387914 has 8 divisors (see below), whose sum is σ = 45709920. Its totient is φ = 15151276.

The previous prime is 30387913. The next prime is 30387919. The reversal of 30387914 is 41978303.

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

It is not an unprimeable number, because it can be changed into a prime (30387913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20444 + ... + 21879.

It is an arithmetic number, because the mean of its divisors is an integer number (5713740).

Almost surely, 230387914 is an apocalyptic number.

30387914 is a deficient number, since it is larger than the sum of its proper divisors (15322006).

30387914 is a wasteful number, since it uses less digits than its factorization.

30387914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42684.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 30387914 is about 5512.5233786352. The cubic root of 30387914 is about 312.0567848101.

The spelling of 30387914 in words is "thirty million, three hundred eighty-seven thousand, nine hundred fourteen".

Divisors: 1 2 359 718 42323 84646 15193957 30387914