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30612697 is a prime number
BaseRepresentation
bin111010011000…
…1110011011001
32010121021201121
41310301303121
530314101242
63012045241
7521126563
oct164616331
963537647
1030612697
1116309855
12a303821
13645ab2b
1440cc333
152a4a667
hex1d31cd9

30612697 has 2 divisors, whose sum is σ = 30612698. Its totient is φ = 30612696.

The previous prime is 30612679. The next prime is 30612709. The reversal of 30612697 is 79621603.

Together with previous prime (30612679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30591961 + 20736 = 5531^2 + 144^2 .

It is a cyclic number.

It is not a de Polignac number, because 30612697 - 223 = 22224089 is a prime.

It is a super-2 number, since 2×306126972 = 1874274435227618, which contains 22 as substring.

It is equal to p1893517 and since 30612697 and 1893517 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (30612677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15306348 + 15306349.

It is an arithmetic number, because the mean of its divisors is an integer number (15306349).

Almost surely, 230612697 is an apocalyptic number.

It is an amenable number.

30612697 is a deficient number, since it is larger than the sum of its proper divisors (1).

30612697 is an equidigital number, since it uses as much as digits as its factorization.

30612697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 30612697 is about 5532.8742078598. The cubic root of 30612697 is about 312.8243356906.

The spelling of 30612697 in words is "thirty million, six hundred twelve thousand, six hundred ninety-seven".