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30374429 is a prime number
BaseRepresentation
bin111001111011…
…1101000011101
32010011011212212
41303313220131
530233440204
63003010205
7516115121
oct163675035
963134785
1030374429
1116166838
12a209965
1363a6547
144069581
1529eec6e
hex1cf7a1d

30374429 has 2 divisors, whose sum is σ = 30374430. Its totient is φ = 30374428.

The previous prime is 30374423. The next prime is 30374471. The reversal of 30374429 is 92447303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22108804 + 8265625 = 4702^2 + 2875^2 .

It is a cyclic number.

It is not a de Polignac number, because 30374429 - 216 = 30308893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30374395 and 30374404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30374423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15187214 + 15187215.

It is an arithmetic number, because the mean of its divisors is an integer number (15187215).

Almost surely, 230374429 is an apocalyptic number.

It is an amenable number.

30374429 is a deficient number, since it is larger than the sum of its proper divisors (1).

30374429 is an equidigital number, since it uses as much as digits as its factorization.

30374429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 30374429 is about 5511.3001188467. The cubic root of 30374429 is about 312.0106183379.

It can be divided in two parts, 30374 and 429, that added together give a palindrome (30803).

The spelling of 30374429 in words is "thirty million, three hundred seventy-four thousand, four hundred twenty-nine".