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30247061 = 1321111027
BaseRepresentation
bin111001101100…
…0100010010101
32002220201011112
41303120202111
530220401221
63000144405
7515044565
oct163304225
962821145
1030247061
111608a079
12a168105
136360590
144034da5
1529c715b
hex1cd8895

30247061 has 8 divisors (see below), whose sum is σ = 32731104. Its totient is φ = 27785520.

The previous prime is 30247057. The next prime is 30247127. The reversal of 30247061 is 16074203.

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 30247061 - 22 = 30247057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30247561) 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, 2771 + ... + 8256.

It is an arithmetic number, because the mean of its divisors is an integer number (4091388).

Almost surely, 230247061 is an apocalyptic number.

It is an amenable number.

30247061 is a deficient number, since it is larger than the sum of its proper divisors (2484043).

30247061 is a wasteful number, since it uses less digits than its factorization.

30247061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11251.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 30247061 is about 5499.7328116919. The cubic root of 30247061 is about 311.5738930340.

The spelling of 30247061 in words is "thirty million, two hundred forty-seven thousand, sixty-one".

Divisors: 1 13 211 2743 11027 143351 2326697 30247061