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30012268 = 22111371739
BaseRepresentation
bin111001001111…
…1001101101100
32002110210002111
41302133031230
530140343033
62551133404
7513046216
oct162371554
962423074
1030012268
1115a39730
12a074264
1362aa750
143db35b6
15297c7cd
hex1c9f36c

30012268 has 48 divisors (see below), whose sum is σ = 62657280. Its totient is φ = 12398400.

The previous prime is 30012239. The next prime is 30012289. The reversal of 30012268 is 86221003.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 40243 + ... + 40981.

It is an arithmetic number, because the mean of its divisors is an integer number (1305360).

Almost surely, 230012268 is an apocalyptic number.

It is an amenable number.

30012268 is an abundant number, since it is smaller than the sum of its proper divisors (32645012).

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

30012268 is a wasteful number, since it uses less digits than its factorization.

30012268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 30012268 is about 5478.3453706388. The cubic root of 30012268 is about 310.7655998548.

The spelling of 30012268 in words is "thirty million, twelve thousand, two hundred sixty-eight".

Divisors: 1 2 4 11 13 22 26 44 52 71 142 143 284 286 572 739 781 923 1478 1562 1846 2956 3124 3692 8129 9607 10153 16258 19214 20306 32516 38428 40612 52469 104938 105677 209876 211354 422708 577159 682097 1154318 1364194 2308636 2728388 7503067 15006134 30012268