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30668204 = 22717193391
BaseRepresentation
bin111010011111…
…1010110101100
32010201002212102
41310333112230
530322340304
63013154232
7521450450
oct164772654
963632772
1030668204
1116347526
12a32b978
13647a188
144104660
152a5bd1e
hex1d3f5ac

30668204 has 48 divisors (see below), whose sum is σ = 68382720. Its totient is φ = 11715840.

The previous prime is 30668189. The next prime is 30668213. The reversal of 30668204 is 40286603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7349 + ... + 10739.

It is an arithmetic number, because the mean of its divisors is an integer number (1424640).

Almost surely, 230668204 is an apocalyptic number.

30668204 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30668204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34191360).

30668204 is an abundant number, since it is smaller than the sum of its proper divisors (37714516).

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

30668204 is a wasteful number, since it uses less digits than its factorization.

30668204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438 (or 3436 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 30668204 is about 5537.8880450944. Note that the first 3 decimals coincide. The cubic root of 30668204 is about 313.0132927561.

The spelling of 30668204 in words is "thirty million, six hundred sixty-eight thousand, two hundred four".

Divisors: 1 2 4 7 14 17 19 28 34 38 68 76 119 133 238 266 323 476 532 646 1292 2261 3391 4522 6782 9044 13564 23737 47474 57647 64429 94948 115294 128858 230588 257716 403529 451003 807058 902006 1095293 1614116 1804012 2190586 4381172 7667051 15334102 30668204