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30519404 = 227629851
BaseRepresentation
bin111010001101…
…1000001101100
32010102112202022
41310123001230
530303110104
63010045312
7520260566
oct164330154
963375668
1030519404
1116255753
12a279838
136427526
1440a6336
152a2cbbe
hex1d1b06c

30519404 has 6 divisors (see below), whose sum is σ = 53408964. Its totient is φ = 15259700.

The previous prime is 30519383. The next prime is 30519409. The reversal of 30519404 is 40491503.

It is not an unprimeable number, because it can be changed into a prime (30519409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3814922 + ... + 3814929.

It is an arithmetic number, because the mean of its divisors is an integer number (8901494).

Almost surely, 230519404 is an apocalyptic number.

It is an amenable number.

30519404 is a deficient number, since it is larger than the sum of its proper divisors (22889560).

30519404 is a wasteful number, since it uses less digits than its factorization.

30519404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7629855 (or 7629853 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 30519404 is about 5524.4369848881. The cubic root of 30519404 is about 312.5062321957.

The spelling of 30519404 in words is "thirty million, five hundred nineteen thousand, four hundred four".

Divisors: 1 2 4 7629851 15259702 30519404