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30074519 = 15121319
BaseRepresentation
bin111001010111…
…0011010010111
32002120221111002
41302232122113
530144341034
62552333515
7513425546
oct162563227
962527432
1030074519
1115a81482
12a0a429b
1362ccb97
143dcc15d
152990e7e
hex1cae697

30074519 has 6 divisors (see below), whose sum is σ = 30297960. Its totient is φ = 29852700.

The previous prime is 30074509. The next prime is 30074521. The reversal of 30074519 is 91547003.

It is not a de Polignac number, because 30074519 - 24 = 30074503 is a prime.

It is a super-2 number, since 2×300745192 = 1808953386162722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30074491 and 30074500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30074509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22142 + ... + 23460.

It is an arithmetic number, because the mean of its divisors is an integer number (5049660).

Almost surely, 230074519 is an apocalyptic number.

30074519 is a deficient number, since it is larger than the sum of its proper divisors (223441).

30074519 is an equidigital number, since it uses as much as digits as its factorization.

30074519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621 (or 1470 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 30074519 is about 5484.0239787951. The cubic root of 30074519 is about 310.9803132667.

The spelling of 30074519 in words is "thirty million, seventy-four thousand, five hundred nineteen".

Divisors: 1 151 1319 22801 199169 30074519