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30730485 = 352048699
BaseRepresentation
bin111010100111…
…0100011110101
32010211021022010
41311032203311
530331333420
63014354433
7522130152
oct165164365
963737263
1030730485
111638a2a5
12a35ba19
13649c626
14411d229
152a704e0
hex1d4e8f5

30730485 has 8 divisors (see below), whose sum is σ = 49168800. Its totient is φ = 16389584.

The previous prime is 30730477. The next prime is 30730489. The reversal of 30730485 is 58403703.

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

It is a cyclic number.

It is not a de Polignac number, because 30730485 - 23 = 30730477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30730489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1024335 + ... + 1024364.

It is an arithmetic number, because the mean of its divisors is an integer number (6146100).

Almost surely, 230730485 is an apocalyptic number.

It is an amenable number.

30730485 is a deficient number, since it is larger than the sum of its proper divisors (18438315).

30730485 is a wasteful number, since it uses less digits than its factorization.

30730485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048707.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 30730485 is about 5543.5083656472. The cubic root of 30730485 is about 313.2250386530.

The spelling of 30730485 in words is "thirty million, seven hundred thirty thousand, four hundred eighty-five".

Divisors: 1 3 5 15 2048699 6146097 10243495 30730485