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30434997 = 341247439
BaseRepresentation
bin111010000011…
…0011010110101
32010021020222010
41310012122311
530242404442
63004154433
7516456525
oct164063265
963236863
1030434997
11161a829a
12a238a19
1363c7c98
144083685
152a12b9c
hex1d066b5

30434997 has 8 divisors (see below), whose sum is σ = 41569920. Its totient is φ = 19795040.

The previous prime is 30434959. The next prime is 30435001. The reversal of 30434997 is 79943403.

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 30434997 - 26 = 30434933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30434297) 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 7 ways as a sum of consecutive naturals, for example, 123597 + ... + 123842.

It is an arithmetic number, because the mean of its divisors is an integer number (5196240).

Almost surely, 230434997 is an apocalyptic number.

It is an amenable number.

30434997 is a deficient number, since it is larger than the sum of its proper divisors (11134923).

30434997 is a wasteful number, since it uses less digits than its factorization.

30434997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247483.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 30434997 is about 5516.7922745016. The cubic root of 30434997 is about 312.2178684557.

The spelling of 30434997 in words is "thirty million, four hundred thirty-four thousand, nine hundred ninety-seven".

Divisors: 1 3 41 123 247439 742317 10144999 30434997