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30739306 = 2131182281
BaseRepresentation
bin111010101000…
…0101101101010
32010211201101211
41311100231222
530332124211
63014503334
7522164653
oct165205552
963751354
1030739306
1116395994
12a364b4a
1364a3650
14412252a
152a72e21
hex1d50b6a

30739306 has 8 divisors (see below), whose sum is σ = 49655844. Its totient is φ = 14187360.

The previous prime is 30739297. The next prime is 30739307. The reversal of 30739306 is 60393703.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30305025 + 434281 = 5505^2 + 659^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30739307) 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 3 ways as a sum of consecutive naturals, for example, 591115 + ... + 591166.

Almost surely, 230739306 is an apocalyptic number.

30739306 is a deficient number, since it is larger than the sum of its proper divisors (18916538).

30739306 is a wasteful number, since it uses less digits than its factorization.

30739306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182296.

The product of its (nonzero) digits is 10206, while the sum is 31.

The square root of 30739306 is about 5544.3039238483. The cubic root of 30739306 is about 313.2550055707.

The spelling of 30739306 in words is "thirty million, seven hundred thirty-nine thousand, three hundred six".

Divisors: 1 2 13 26 1182281 2364562 15369653 30739306