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30059481 = 310199833
BaseRepresentation
bin111001010101…
…0101111011001
32002120011212010
41302222233121
530143400411
62552140133
7513333654
oct162525731
962504763
1030059481
1115a71151
12a097649
1362c609a
143dc689b
15298b7a6
hex1caabd9

30059481 has 8 divisors (see below), whose sum is σ = 40122720. Its totient is φ = 20017952.

The previous prime is 30059467. The next prime is 30059489. The reversal of 30059481 is 18495003.

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 30059481 - 219 = 29535193 is a prime.

It is a super-2 number, since 2×300594812 = 1807144795978722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30059489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1860 + ... + 7973.

It is an arithmetic number, because the mean of its divisors is an integer number (5015340).

Almost surely, 230059481 is an apocalyptic number.

It is an amenable number.

30059481 is a deficient number, since it is larger than the sum of its proper divisors (10063239).

30059481 is a wasteful number, since it uses less digits than its factorization.

30059481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10855.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 30059481 is about 5482.6527338506. The cubic root of 30059481 is about 310.9284720206.

The spelling of 30059481 in words is "thirty million, fifty-nine thousand, four hundred eighty-one".

Divisors: 1 3 1019 3057 9833 29499 10019827 30059481