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30019107 = 319526651
BaseRepresentation
bin111001010000…
…0111000100011
32002111010110210
41302200320203
530141102412
62551225203
7513105156
oct162407043
962433423
1030019107
1115a43888
12a078203
1362b08b1
143db5c9d
15297e83c
hex1ca0e23

30019107 has 8 divisors (see below), whose sum is σ = 42132160. Its totient is φ = 18959400.

The previous prime is 30019103. The next prime is 30019111. The reversal of 30019107 is 70191003.

It is an interprime number because it is at equal distance from previous prime (30019103) and next prime (30019111).

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

It is not a de Polignac number, because 30019107 - 22 = 30019103 is a prime.

It is a super-2 number, since 2×300191072 = 1802293570154898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30019103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263269 + ... + 263382.

It is an arithmetic number, because the mean of its divisors is an integer number (5266520).

Almost surely, 230019107 is an apocalyptic number.

30019107 is a deficient number, since it is larger than the sum of its proper divisors (12113053).

30019107 is a wasteful number, since it uses less digits than its factorization.

30019107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526673.

The product of its (nonzero) digits is 189, while the sum is 21.

The square root of 30019107 is about 5478.9695199006. The cubic root of 30019107 is about 310.7892031417.

The spelling of 30019107 in words is "thirty million, nineteen thousand, one hundred seven".

Divisors: 1 3 19 57 526651 1579953 10006369 30019107