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30377138 = 2111380779
BaseRepresentation
bin111001111100…
…0010010110010
32010011022121012
41303320102302
530234032023
63003030522
7516126041
oct163702262
963138535
1030377138
1116168880
12a20b442
1363a784c
14406a558
152a00978
hex1cf84b2

30377138 has 8 divisors (see below), whose sum is σ = 49708080. Its totient is φ = 13807780.

The previous prime is 30377131. The next prime is 30377161. The reversal of 30377138 is 83177303.

It is a happy number.

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 (30377131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690368 + ... + 690411.

It is an arithmetic number, because the mean of its divisors is an integer number (6213510).

Almost surely, 230377138 is an apocalyptic number.

30377138 is a deficient number, since it is larger than the sum of its proper divisors (19330942).

30377138 is a wasteful number, since it uses less digits than its factorization.

30377138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380792.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 30377138 is about 5511.5458811480. The cubic root of 30377138 is about 312.0198938115.

The spelling of 30377138 in words is "thirty million, three hundred seventy-seven thousand, one hundred thirty-eight".

Divisors: 1 2 11 22 1380779 2761558 15188569 30377138