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30629141 is a prime number
BaseRepresentation
bin111010011010…
…1110100010101
32010122010021122
41310311310111
530320113031
63012253325
7521225534
oct164656425
963563248
1030629141
1116320144
12a311245
13646546a
1440d431b
152a5047b
hex1d35d15

30629141 has 2 divisors, whose sum is σ = 30629142. Its totient is φ = 30629140.

The previous prime is 30629111. The next prime is 30629149. The reversal of 30629141 is 14192603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29658916 + 970225 = 5446^2 + 985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30629141 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30629141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30629149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15314570 + 15314571.

It is an arithmetic number, because the mean of its divisors is an integer number (15314571).

Almost surely, 230629141 is an apocalyptic number.

It is an amenable number.

30629141 is a deficient number, since it is larger than the sum of its proper divisors (1).

30629141 is an equidigital number, since it uses as much as digits as its factorization.

30629141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 30629141 is about 5534.3600352706. The cubic root of 30629141 is about 312.8803381894.

The spelling of 30629141 in words is "thirty million, six hundred twenty-nine thousand, one hundred forty-one".