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30221054 = 215110527
BaseRepresentation
bin111001101001…
…0001011111110
32002212101111022
41303102023332
530214033204
62555424142
7514606013
oct163221376
962771438
1030221054
1116071586
12a155052
1363517a6
14402970a
1529be5be
hex1cd22fe

30221054 has 4 divisors (see below), whose sum is σ = 45331584. Its totient is φ = 15110526.

The previous prime is 30221041. The next prime is 30221069. The reversal of 30221054 is 45012203.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7555262 + ... + 7555265.

It is an arithmetic number, because the mean of its divisors is an integer number (11332896).

Almost surely, 230221054 is an apocalyptic number.

30221054 is a deficient number, since it is larger than the sum of its proper divisors (15110530).

30221054 is a wasteful number, since it uses less digits than its factorization.

30221054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15110529.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 30221054 is about 5497.3679156484. The cubic root of 30221054 is about 311.4845683693.

Adding to 30221054 its reverse (45012203), we get a palindrome (75233257).

The spelling of 30221054 in words is "thirty million, two hundred twenty-one thousand, fifty-four".

Divisors: 1 2 15110527 30221054