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30685346 = 215342673
BaseRepresentation
bin111010100001…
…1100010100010
32010201222101022
41311003202202
530323412341
63013405442
7521551436
oct165034242
963658338
1030685346
111635939a
12a339882
136484c13
14410a9c6
152a61e4b
hex1d438a2

30685346 has 4 divisors (see below), whose sum is σ = 46028022. Its totient is φ = 15342672.

The previous prime is 30685327. The next prime is 30685351. The reversal of 30685346 is 64358603.

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

It can be written as a sum of positive squares in only one way, i.e., 20349121 + 10336225 = 4511^2 + 3215^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7671335 + ... + 7671338.

Almost surely, 230685346 is an apocalyptic number.

30685346 is a deficient number, since it is larger than the sum of its proper divisors (15342676).

30685346 is a wasteful number, since it uses less digits than its factorization.

30685346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15342675.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 30685346 is about 5539.4355308100. The cubic root of 30685346 is about 313.0716015120.

The spelling of 30685346 in words is "thirty million, six hundred eighty-five thousand, three hundred forty-six".

Divisors: 1 2 15342673 30685346