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30705574 = 225795953
BaseRepresentation
bin111010100100…
…0011110100110
32010210000010111
41311020132212
530330034244
63014043234
7521664424
oct165103646
963700114
1030705574
1116372609
12a34951a
1364911a3
144114114
152a67e34
hex1d487a6

30705574 has 8 divisors (see below), whose sum is σ = 46083960. Its totient is φ = 15344256.

The previous prime is 30705559. The next prime is 30705581. The reversal of 30705574 is 47550703.

30705574 is nontrivially palindromic in base 14.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2182 + ... + 8134.

It is an arithmetic number, because the mean of its divisors is an integer number (5760495).

Almost surely, 230705574 is an apocalyptic number.

30705574 is a deficient number, since it is larger than the sum of its proper divisors (15378386).

30705574 is a wasteful number, since it uses less digits than its factorization.

30705574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8534.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 30705574 is about 5541.2610478121. The cubic root of 30705574 is about 313.1403794157.

The spelling of 30705574 in words is "thirty million, seven hundred five thousand, five hundred seventy-four".

Divisors: 1 2 2579 5158 5953 11906 15352787 30705574