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30890483 = 132376191
BaseRepresentation
bin111010111010…
…1100111110011
32011010101202222
41311311213303
530401443413
63022031255
7523364501
oct165654763
964111688
1030890483
1116489528
12a41852b
1365273c0
144161671
152aa2b08
hex1d759f3

30890483 has 4 divisors (see below), whose sum is σ = 33266688. Its totient is φ = 28514280.

The previous prime is 30890459. The next prime is 30890521. The reversal of 30890483 is 38409803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38409803 = 361310631.

It is a cyclic number.

It is not a de Polignac number, because 30890483 - 220 = 29841907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30890413) 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, 1188083 + ... + 1188108.

It is an arithmetic number, because the mean of its divisors is an integer number (8316672).

Almost surely, 230890483 is an apocalyptic number.

30890483 is a deficient number, since it is larger than the sum of its proper divisors (2376205).

30890483 is a wasteful number, since it uses less digits than its factorization.

30890483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2376204.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 30890483 is about 5557.9207443072. The cubic root of 30890483 is about 313.7676990910.

The spelling of 30890483 in words is "thirty million, eight hundred ninety thousand, four hundred eighty-three".

Divisors: 1 13 2376191 30890483