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30041216 = 27298093
BaseRepresentation
bin111001010011…
…0010010000000
32002112020210122
41302212102000
530142304331
62551515412
7513226502
oct162462200
962466718
1030041216
1115a59457
12a088b68
1362ba98a
143dbdd72
15298617b
hex1ca6480

30041216 has 32 divisors (see below), whose sum is σ = 61919100. Its totient is φ = 14500864.

The previous prime is 30041203. The next prime is 30041237. The reversal of 30041216 is 61214003.

It can be written as a sum of positive squares in 2 ways, for example, as 30030400 + 10816 = 5480^2 + 104^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 30041194 and 30041203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335 + ... + 7758.

Almost surely, 230041216 is an apocalyptic number.

It is an amenable number.

30041216 is an abundant number, since it is smaller than the sum of its proper divisors (31877884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30041216 is an equidigital number, since it uses as much as digits as its factorization.

30041216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8136 (or 8124 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 30041216 is about 5480.9867724708. The cubic root of 30041216 is about 310.8654829180.

Adding to 30041216 its reverse (61214003), we get a palindrome (91255219).

The spelling of 30041216 in words is "thirty million, forty-one thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 29 32 58 64 116 128 232 464 928 1856 3712 8093 16186 32372 64744 129488 234697 258976 469394 517952 938788 1035904 1877576 3755152 7510304 15020608 30041216