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30574966 = 215287483
BaseRepresentation
bin111010010100…
…0100101110110
32010112100222011
41310220211312
530311344331
63011154434
7520611562
oct164504566
963470864
1030574966
1116293474
12a2a5a1a
1364468c6
1440bc6a2
152a3e3b1
hex1d28976

30574966 has 4 divisors (see below), whose sum is σ = 45862452. Its totient is φ = 15287482.

The previous prime is 30574963. The next prime is 30574979. The reversal of 30574966 is 66947503.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30574963) 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 as a sum of consecutive naturals, namely, 7643740 + ... + 7643743.

It is an arithmetic number, because the mean of its divisors is an integer number (11465613).

Almost surely, 230574966 is an apocalyptic number.

30574966 is a deficient number, since it is larger than the sum of its proper divisors (15287486).

30574966 is a wasteful number, since it uses less digits than its factorization.

30574966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15287485.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 30574966 is about 5529.4634459412. The cubic root of 30574966 is about 312.6957612891.

The spelling of 30574966 in words is "thirty million, five hundred seventy-four thousand, nine hundred sixty-six".

Divisors: 1 2 15287483 30574966