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30493401 = 310164467
BaseRepresentation
bin111010001010…
…0101011011001
32010101020002020
41310110223121
530301242101
63005325053
7520122021
oct164245331
963336066
1030493401
1116238164
12a266789
136418743
14409aa81
152a25136
hex1d14ad9

30493401 has 4 divisors (see below), whose sum is σ = 40657872. Its totient is φ = 20328932.

The previous prime is 30493373. The next prime is 30493457. The reversal of 30493401 is 10439403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30493401 - 27 = 30493273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30493481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5082231 + ... + 5082236.

It is an arithmetic number, because the mean of its divisors is an integer number (10164468).

Almost surely, 230493401 is an apocalyptic number.

It is an amenable number.

30493401 is a deficient number, since it is larger than the sum of its proper divisors (10164471).

30493401 is a wasteful number, since it uses less digits than its factorization.

30493401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10164470.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30493401 is about 5522.0830308861. The cubic root of 30493401 is about 312.4174536108.

The spelling of 30493401 in words is "thirty million, four hundred ninety-three thousand, four hundred one".

Divisors: 1 3 10164467 30493401