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30702973 = 741106979
BaseRepresentation
bin111010100011…
…1110101111101
32010202212120011
41311013311331
530324443343
63014023221
7521654020
oct165076575
963685504
1030702973
1116370664
12a347b11
13648cc52
1441131b7
152a6729d
hex1d47d7d

30702973 has 8 divisors (see below), whose sum is σ = 35945280. Its totient is φ = 25674720.

The previous prime is 30702949. The next prime is 30702977. The reversal of 30702973 is 37920703.

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 30702973 - 25 = 30702941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30702977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53203 + ... + 53776.

It is an arithmetic number, because the mean of its divisors is an integer number (4493160).

Almost surely, 230702973 is an apocalyptic number.

It is an amenable number.

30702973 is a deficient number, since it is larger than the sum of its proper divisors (5242307).

30702973 is a wasteful number, since it uses less digits than its factorization.

30702973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107027.

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 30702973 is about 5541.0263489718. The cubic root of 30702973 is about 313.1315373607.

The spelling of 30702973 in words is "thirty million, seven hundred two thousand, nine hundred seventy-three".

Divisors: 1 7 41 287 106979 748853 4386139 30702973