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30122297 = 311138599
BaseRepresentation
bin111001011101…
…0000100111001
32002200101000122
41302322010321
530202403142
62553343025
7514015052
oct162720471
962611018
1030122297
1116004367
12a107a75
13631885a
144001729
1529a01d2
hex1cba139

30122297 has 8 divisors (see below), whose sum is σ = 31372800. Its totient is φ = 28889280.

The previous prime is 30122293. The next prime is 30122303. The reversal of 30122297 is 79222103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30122297 - 22 = 30122293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30122293) 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 7 ways as a sum of consecutive naturals, for example, 797 + ... + 7802.

It is an arithmetic number, because the mean of its divisors is an integer number (3921600).

Almost surely, 230122297 is an apocalyptic number.

It is an amenable number.

30122297 is a deficient number, since it is larger than the sum of its proper divisors (1250503).

30122297 is a wasteful number, since it uses less digits than its factorization.

30122297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8743.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 30122297 is about 5488.3783579487. The cubic root of 30122297 is about 311.1449061597.

The spelling of 30122297 in words is "thirty million, one hundred twenty-two thousand, two hundred ninety-seven".

Divisors: 1 31 113 3503 8599 266569 971687 30122297