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30551054 = 215275527
BaseRepresentation
bin111010010001…
…0110000001110
32010111011011112
41310202300032
530310113204
63010452022
7520452062
oct164426016
963434145
1030551054
1116277506
12a294012
136438a61
1440b3aa2
152a3726e
hex1d22c0e

30551054 has 4 divisors (see below), whose sum is σ = 45826584. Its totient is φ = 15275526.

The previous prime is 30551051. The next prime is 30551141. The reversal of 30551054 is 45015503.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30551051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7637762 + ... + 7637765.

It is an arithmetic number, because the mean of its divisors is an integer number (11456646).

Almost surely, 230551054 is an apocalyptic number.

30551054 is a deficient number, since it is larger than the sum of its proper divisors (15275530).

30551054 is a wasteful number, since it uses less digits than its factorization.

30551054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15275529.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 30551054 is about 5527.3007879072. The cubic root of 30551054 is about 312.6142225652.

Adding to 30551054 its reverse (45015503), we get a palindrome (75566557).

The spelling of 30551054 in words is "thirty million, five hundred fifty-one thousand, fifty-four".

Divisors: 1 2 15275527 30551054