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30665316 = 223111912227
BaseRepresentation
bin111010011111…
…0101001100100
32010200221220110
41310332221210
530322242231
63013133020
7521436153
oct164765144
963627813
1030665316
1116345340
12a32a170
136478a76
14410359a
152a5b046
hex1d3ea64

30665316 has 48 divisors (see below), whose sum is σ = 82172160. Its totient is φ = 8802720.

The previous prime is 30665311. The next prime is 30665333. The reversal of 30665316 is 61356603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30665311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3606 + ... + 8621.

It is an arithmetic number, because the mean of its divisors is an integer number (1711920).

Almost surely, 230665316 is an apocalyptic number.

It is an amenable number.

30665316 is an abundant number, since it is smaller than the sum of its proper divisors (51506844).

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

30665316 is a wasteful number, since it uses less digits than its factorization.

30665316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12264 (or 12262 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 30665316 is about 5537.6272897334. The cubic root of 30665316 is about 313.0034670447.

The spelling of 30665316 in words is "thirty million, six hundred sixty-five thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 11 12 19 22 33 38 44 57 66 76 114 132 209 228 418 627 836 1254 2508 12227 24454 36681 48908 73362 134497 146724 232313 268994 403491 464626 537988 696939 806982 929252 1393878 1613964 2555443 2787756 5110886 7666329 10221772 15332658 30665316