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30004121 = 722379337
BaseRepresentation
bin111001001110…
…1001110011001
32002110100220202
41302131032121
530140112441
62551031545
7513013400
oct162351631
962410822
1030004121
1115a335a4
12a06b5b5
1362a6b24
143db0637
15297a19b
hex1c9d399

30004121 has 24 divisors (see below), whose sum is σ = 36990720. Its totient is φ = 24216192.

The previous prime is 30004057. The next prime is 30004147. The reversal of 30004121 is 12140003.

It is a happy number.

It is not a de Polignac number, because 30004121 - 26 = 30004057 is a prime.

It is a super-3 number, since 3×300041213 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30004421) 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, 88865 + ... + 89201.

It is an arithmetic number, because the mean of its divisors is an integer number (1541280).

Almost surely, 230004121 is an apocalyptic number.

It is an amenable number.

30004121 is a deficient number, since it is larger than the sum of its proper divisors (6986599).

30004121 is a wasteful number, since it uses less digits than its factorization.

30004121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 446 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 30004121 is about 5477.6017562433. The cubic root of 30004121 is about 310.7374776164.

Adding to 30004121 its reverse (12140003), we get a palindrome (42144124).

The spelling of 30004121 in words is "thirty million, four thousand, one hundred twenty-one".

Divisors: 1 7 23 49 79 161 337 553 1127 1817 2359 3871 7751 12719 16513 26623 54257 89033 186361 379799 612329 1304527 4286303 30004121