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30473941 is a prime number
BaseRepresentation
bin111010000111…
…1111011010101
32010100020101111
41310033323111
530300131231
63005055021
7520011211
oct164177325
963306344
1030473941
1116224583
12a257471
13640c924
144093941
152a1e4b1
hex1d0fed5

30473941 has 2 divisors, whose sum is σ = 30473942. Its totient is φ = 30473940.

The previous prime is 30473939. The next prime is 30473951. The reversal of 30473941 is 14937403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28313041 + 2160900 = 5321^2 + 1470^2 .

It is a cyclic number.

It is not a de Polignac number, because 30473941 - 21 = 30473939 is a prime.

It is a super-2 number, since 2×304739412 = 1857322160142962, which contains 22 as substring.

Together with 30473939, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30473951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15236970 + 15236971.

It is an arithmetic number, because the mean of its divisors is an integer number (15236971).

Almost surely, 230473941 is an apocalyptic number.

It is an amenable number.

30473941 is a deficient number, since it is larger than the sum of its proper divisors (1).

30473941 is an equidigital number, since it uses as much as digits as its factorization.

30473941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 30473941 is about 5520.3207334357. The cubic root of 30473941 is about 312.3509808965.

The spelling of 30473941 in words is "thirty million, four hundred seventy-three thousand, nine hundred forty-one".