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30000297 = 3192918149
BaseRepresentation
bin111001001110…
…0010010101001
32002110011200010
41302130102221
530140002142
62551002133
7512666265
oct162342251
962404603
1030000297
1115a30738
12a069349
1362a5172
143dad0a5
152978e9c
hex1c9c4a9

30000297 has 16 divisors (see below), whose sum is σ = 43560000. Its totient is φ = 18293184.

The previous prime is 30000293. The next prime is 30000301. The reversal of 30000297 is 79200003.

It is an interprime number because it is at equal distance from previous prime (30000293) and next prime (30000301).

It is not a de Polignac number, because 30000297 - 22 = 30000293 is a prime.

30000297 is a modest number, since divided by 297 gives 30 as remainder.

It is not an unprimeable number, because it can be changed into a prime (30000293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7422 + ... + 10727.

It is an arithmetic number, because the mean of its divisors is an integer number (2722500).

Almost surely, 230000297 is an apocalyptic number.

It is an amenable number.

30000297 is a deficient number, since it is larger than the sum of its proper divisors (13559703).

30000297 is a wasteful number, since it uses less digits than its factorization.

30000297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18200.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 30000297 is about 5477.2526872512. The cubic root of 30000297 is about 310.7242759787.

The spelling of 30000297 in words is "thirty million, two hundred ninety-seven", and thus it is an aban number.

Divisors: 1 3 19 29 57 87 551 1653 18149 54447 344831 526321 1034493 1578963 10000099 30000297