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30394419 = 3111723187
BaseRepresentation
bin111001111110…
…0100000110011
32010012012022020
41303330200303
530240110134
63003242523
7516230316
oct163744063
963165266
1030394419
111617a860
12a219443
1363b2683
14407297d
152a05b49
hex1cfc833

30394419 has 24 divisors (see below), whose sum is σ = 46978368. Its totient is φ = 17331840.

The previous prime is 30394417. The next prime is 30394423. The reversal of 30394419 is 91449303.

It is not a de Polignac number, because 30394419 - 21 = 30394417 is a prime.

It is a super-2 number, since 2×303944192 = 1847641412695122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 30394419.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30394417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7944 + ... + 11130.

It is an arithmetic number, because the mean of its divisors is an integer number (1957432).

Almost surely, 230394419 is an apocalyptic number.

30394419 is a deficient number, since it is larger than the sum of its proper divisors (16583949).

30394419 is a wasteful number, since it uses less digits than its factorization.

30394419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235 (or 3218 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 30394419 is about 5513.1133672363. The cubic root of 30394419 is about 312.0790500716.

The spelling of 30394419 in words is "thirty million, three hundred ninety-four thousand, four hundred nineteen".

Divisors: 1 3 11 17 33 51 187 289 561 867 3179 3187 9537 9561 35057 54179 105171 162537 595969 921043 1787907 2763129 10131473 30394419