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30506703 = 310168901
BaseRepresentation
bin111010001011…
…1111011001111
32010101220022220
41310113323033
530302203303
63005510423
7520205553
oct164277317
963356286
1030506703
1116247157
12a272413
136421806
1440a1863
152a29053
hex1d17ecf

30506703 has 4 divisors (see below), whose sum is σ = 40675608. Its totient is φ = 20337800.

The previous prime is 30506701. The next prime is 30506731. The reversal of 30506703 is 30760503.

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

It is a cyclic number.

It is not a de Polignac number, because 30506703 - 21 = 30506701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30506701) 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 3 ways as a sum of consecutive naturals, for example, 5084448 + ... + 5084453.

It is an arithmetic number, because the mean of its divisors is an integer number (10168902).

Almost surely, 230506703 is an apocalyptic number.

30506703 is a deficient number, since it is larger than the sum of its proper divisors (10168905).

30506703 is a wasteful number, since it uses less digits than its factorization.

30506703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10168904.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 30506703 is about 5523.2873363605. The cubic root of 30506703 is about 312.4628751631.

The spelling of 30506703 in words is "thirty million, five hundred six thousand, seven hundred three".

Divisors: 1 3 10168901 30506703