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30297166 = 215148583
BaseRepresentation
bin111001110010…
…0110001001110
32010000020220021
41303210301032
530224002131
63001212354
7515343634
oct163446116
963006807
1030297166
1116113789
12a1910ba
13637a323
144049354
1529d6e11
hex1ce4c4e

30297166 has 4 divisors (see below), whose sum is σ = 45445752. Its totient is φ = 15148582.

The previous prime is 30297161. The next prime is 30297167. The reversal of 30297166 is 66179203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66179203 = 312134813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30297161) 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, 7574290 + ... + 7574293.

It is an arithmetic number, because the mean of its divisors is an integer number (11361438).

Almost surely, 230297166 is an apocalyptic number.

30297166 is a deficient number, since it is larger than the sum of its proper divisors (15148586).

30297166 is a wasteful number, since it uses less digits than its factorization.

30297166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15148585.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 30297166 is about 5504.2861480850. The cubic root of 30297166 is about 311.7458413941.

The spelling of 30297166 in words is "thirty million, two hundred ninety-seven thousand, one hundred sixty-six".

Divisors: 1 2 15148583 30297166