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30080636 = 2228326573
BaseRepresentation
bin111001010111…
…1111001111100
32002121020212122
41302233321330
530200040021
62552422112
7513452435
oct162577174
962536778
1030080636
1115a86033
12a0a7938
1363028c1
143dd048c
152992bab
hex1cafe7c

30080636 has 12 divisors (see below), whose sum is σ = 52829112. Its totient is φ = 14986608.

The previous prime is 30080623. The next prime is 30080657. The reversal of 30080636 is 63608003.

It is a congruent number.

It is an unprimeable number.

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, 12155 + ... + 14418.

It is an arithmetic number, because the mean of its divisors is an integer number (4402426).

Almost surely, 230080636 is an apocalyptic number.

It is an amenable number.

30080636 is a deficient number, since it is larger than the sum of its proper divisors (22748476).

30080636 is a wasteful number, since it uses less digits than its factorization.

30080636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26860 (or 26858 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 30080636 is about 5484.5816613485. The cubic root of 30080636 is about 311.0013957609.

Adding to 30080636 its reverse (63608003), we get a palindrome (93688639).

The spelling of 30080636 in words is "thirty million, eighty thousand, six hundred thirty-six".

Divisors: 1 2 4 283 566 1132 26573 53146 106292 7520159 15040318 30080636