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30290137 = 471036257
BaseRepresentation
bin111001110001…
…1000011011001
32002222220020221
41303203003121
530223241022
63001120041
7515314303
oct163430331
962886227
1030290137
1116109479
12a189021
136377077
144046973
1529d4cc7
hex1ce30d9

30290137 has 8 divisors (see below), whose sum is σ = 31239936. Its totient is φ = 29353152.

The previous prime is 30290089. The next prime is 30290153. The reversal of 30290137 is 73109203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30290137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30290177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1713 + ... + 7969.

It is an arithmetic number, because the mean of its divisors is an integer number (3904992).

Almost surely, 230290137 is an apocalyptic number.

It is an amenable number.

30290137 is a deficient number, since it is larger than the sum of its proper divisors (949799).

30290137 is a wasteful number, since it uses less digits than its factorization.

30290137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6407.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 30290137 is about 5503.6476086319. The cubic root of 30290137 is about 311.7217309872.

The spelling of 30290137 in words is "thirty million, two hundred ninety thousand, one hundred thirty-seven".

Divisors: 1 47 103 4841 6257 294079 644471 30290137