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30098471 = 134749261
BaseRepresentation
bin111001011010…
…0010000100111
32002122011100012
41302310100213
530201122341
62553040435
7513555434
oct162642047
962564305
1030098471
1115a98477
12a0b611b
13630aa60
143dd6b8b
1529980eb
hex1cb4427

30098471 has 8 divisors (see below), whose sum is σ = 33104064. Its totient is φ = 27191520.

The previous prime is 30098461. The next prime is 30098473. The reversal of 30098471 is 17489003.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30098471 is a prime.

It is a super-3 number, since 3×300984713 (a number of 23 digits) contains 333 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 (30098473) 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, 24020 + ... + 25241.

It is an arithmetic number, because the mean of its divisors is an integer number (4138008).

Almost surely, 230098471 is an apocalyptic number.

30098471 is a deficient number, since it is larger than the sum of its proper divisors (3005593).

30098471 is a wasteful number, since it uses less digits than its factorization.

30098471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49321.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 30098471 is about 5486.2073420533. The cubic root of 30098471 is about 311.0628485178.

The spelling of 30098471 in words is "thirty million, ninety-eight thousand, four hundred seventy-one".

Divisors: 1 13 47 611 49261 640393 2315267 30098471