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30000315 = 354148781
BaseRepresentation
bin111001001110…
…0010010111011
32002110011200210
41302130102323
530140002230
62551002203
7512666322
oct162342273
962404623
1030000315
1115a30754
12a069363
1362a5187
143dad0b9
152978eb0
hex1c9c4bb

30000315 has 16 divisors (see below), whose sum is σ = 49172256. Its totient is φ = 15609600.

The previous prime is 30000307. The next prime is 30000317. The reversal of 30000315 is 51300003.

It is a happy number.

It is not a de Polignac number, because 30000315 - 23 = 30000307 is a prime.

30000315 is a modest number, since divided by 315 gives 30 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 30000315.

It is not an unprimeable number, because it can be changed into a prime (30000317) 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, 23776 + ... + 25005.

It is an arithmetic number, because the mean of its divisors is an integer number (3073266).

Almost surely, 230000315 is an apocalyptic number.

30000315 is a deficient number, since it is larger than the sum of its proper divisors (19171941).

30000315 is a wasteful number, since it uses less digits than its factorization.

30000315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48830.

The product of its (nonzero) digits is 45, while the sum is 12.

The square root of 30000315 is about 5477.2543304104. The cubic root of 30000315 is about 310.7243381230.

Adding to 30000315 its reverse (51300003), we get a palindrome (81300318).

The spelling of 30000315 in words is "thirty million, three hundred fifteen", and thus it is an aban number.

Divisors: 1 3 5 15 41 123 205 615 48781 146343 243905 731715 2000021 6000063 10000105 30000315