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30374988437 is a prime number
BaseRepresentation
bin11100010010011111…
…011000101010010101
32220101212220021210202
4130102133120222111
5444201444112222
621542025230245
72123502066413
oct342237305225
986355807722
1030374988437
1111977986432
125a78632385
132b30c8a151
14168217c2b3
15bcb9eb892
hex7127d8a95

30374988437 has 2 divisors, whose sum is σ = 30374988438. Its totient is φ = 30374988436.

The previous prime is 30374988431. The next prime is 30374988439. The reversal of 30374988437 is 73488947303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27558988081 + 2816000356 = 166009^2 + 53066^2 .

It is an emirp because it is prime and its reverse (73488947303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30374988437 - 26 = 30374988373 is a prime.

Together with 30374988439, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30374988431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15187494218 + 15187494219.

It is an arithmetic number, because the mean of its divisors is an integer number (15187494219).

Almost surely, 230374988437 is an apocalyptic number.

It is an amenable number.

30374988437 is a deficient number, since it is larger than the sum of its proper divisors (1).

30374988437 is an equidigital number, since it uses as much as digits as its factorization.

30374988437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 30374988437 in words is "thirty billion, three hundred seventy-four million, nine hundred eighty-eight thousand, four hundred thirty-seven".