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30085103 = 415912437
BaseRepresentation
bin111001011000…
…0111111101111
32002121111000002
41302300333233
530200210403
62552454515
7513501446
oct162607757
962544002
1030085103
1115a89424
12a0aa43b
136304949
143dd1d5d
152994188
hex1cb0fef

30085103 has 8 divisors (see below), whose sum is σ = 31343760. Its totient is φ = 28851520.

The previous prime is 30085051. The next prime is 30085129. The reversal of 30085103 is 30158003.

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

It is a cyclic number.

It is not a de Polignac number, because 30085103 - 210 = 30084079 is a prime.

It is a super-2 number, since 2×300851032 = 1810226845041218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30085163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3800 + ... + 8637.

It is an arithmetic number, because the mean of its divisors is an integer number (3917970).

Almost surely, 230085103 is an apocalyptic number.

30085103 is a deficient number, since it is larger than the sum of its proper divisors (1258657).

30085103 is a wasteful number, since it uses less digits than its factorization.

30085103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12537.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 30085103 is about 5484.9888787490. The cubic root of 30085103 is about 311.0167896561.

Subtracting 30085103 from its reverse (30158003), we obtain a square (72900 = 2702).

The spelling of 30085103 in words is "thirty million, eighty-five thousand, one hundred three".

Divisors: 1 41 59 2419 12437 509917 733783 30085103