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30380718 = 235063453
BaseRepresentation
bin111001111100…
…1001010101110
32010011111111210
41303321022232
530234140333
63003055250
7516142344
oct163711256
963144453
1030380718
1116170535
12a211526
1363a9374
14406b994
152a01a63
hex1cf92ae

30380718 has 8 divisors (see below), whose sum is σ = 60761448. Its totient is φ = 10126904.

The previous prime is 30380711. The next prime is 30380729. The reversal of 30380718 is 81708303.

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

30380718 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30380711) 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, 2531721 + ... + 2531732.

It is an arithmetic number, because the mean of its divisors is an integer number (7595181).

Almost surely, 230380718 is an apocalyptic number.

30380718 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30380718 is a wasteful number, since it uses less digits than its factorization.

30380718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063458.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 30380718 is about 5511.8706443457. The cubic root of 30380718 is about 312.0321506974.

The spelling of 30380718 in words is "thirty million, three hundred eighty thousand, seven hundred eighteen".

Divisors: 1 2 3 6 5063453 10126906 15190359 30380718