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30341557 is a prime number
BaseRepresentation
bin111001110111…
…1100110110101
32010002111210101
41303233212311
530231412212
63002154101
7515620231
oct163574665
963074711
1030341557
1116144074
12a1b2931
1363945ac
14405b5c1
1529e5157
hex1cef9b5

30341557 has 2 divisors, whose sum is σ = 30341558. Its totient is φ = 30341556.

The previous prime is 30341551. The next prime is 30341579. The reversal of 30341557 is 75514303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28879876 + 1461681 = 5374^2 + 1209^2 .

It is a cyclic number.

It is not a de Polignac number, because 30341557 - 27 = 30341429 is a prime.

It is a super-2 number, since 2×303415572 = 1841220162368498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30341551) 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 as a sum of consecutive naturals, namely, 15170778 + 15170779.

It is an arithmetic number, because the mean of its divisors is an integer number (15170779).

Almost surely, 230341557 is an apocalyptic number.

It is an amenable number.

30341557 is a deficient number, since it is larger than the sum of its proper divisors (1).

30341557 is an equidigital number, since it uses as much as digits as its factorization.

30341557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 30341557 is about 5508.3170751147. The cubic root of 30341557 is about 311.8980223646.

The spelling of 30341557 in words is "thirty million, three hundred forty-one thousand, five hundred fifty-seven".