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30013432 = 2317220687
BaseRepresentation
bin111001001111…
…1011111111000
32002110211200121
41302133133320
530140412212
62551143024
7513052501
oct162373770
962424617
1030013432
1115a3a599
12a074a74
1362ab137
143db3ba8
15297cd07
hex1c9f7f8

30013432 has 16 divisors (see below), whose sum is σ = 59585760. Its totient is φ = 14123904.

The previous prime is 30013411. The next prime is 30013433. The reversal of 30013432 is 23431003.

It is a super-2 number, since 2×300134322 = 1801612200837248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30013433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110208 + ... + 110479.

It is an arithmetic number, because the mean of its divisors is an integer number (3724110).

Almost surely, 230013432 is an apocalyptic number.

It is an amenable number.

30013432 is a deficient number, since it is larger than the sum of its proper divisors (29572328).

30013432 is a wasteful number, since it uses less digits than its factorization.

30013432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220710 (or 220706 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30013432 is about 5478.4516060653. The cubic root of 30013432 is about 310.7696173950.

Adding to 30013432 its reverse (23431003), we get a palindrome (53444435).

The spelling of 30013432 in words is "thirty million, thirteen thousand, four hundred thirty-two".

Divisors: 1 2 4 8 17 34 68 136 220687 441374 882748 1765496 3751679 7503358 15006716 30013432