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30020364 = 22321141432
BaseRepresentation
bin111001010000…
…1001100001100
32002111012012100
41302201030030
530141122424
62551235100
7513111633
oct162411414
962435170
1030020364
1115a44820
12a078a90
1362b133a
143db651a
15297edc9
hex1ca130c

30020364 has 108 divisors (see below), whose sum is σ = 86820552. Its totient is φ = 8668800.

The previous prime is 30020329. The next prime is 30020377. The reversal of 30020364 is 46302003.

30020364 is a `hidden beast` number, since 300 + 2 + 0 + 364 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 698127 + ... + 698169.

It is an arithmetic number, because the mean of its divisors is an integer number (803894).

Almost surely, 230020364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30020364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43410276).

30020364 is an abundant number, since it is smaller than the sum of its proper divisors (56800188).

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

30020364 is a wasteful number, since it uses less digits than its factorization.

30020364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30020364 is about 5479.0842300516. The cubic root of 30020364 is about 310.7935410076.

Adding to 30020364 its reverse (46302003), we get a palindrome (76322367).

The spelling of 30020364 in words is "thirty million, twenty thousand, three hundred sixty-four".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 41 43 44 66 82 86 99 123 129 132 164 172 198 246 258 369 387 396 451 473 492 516 738 774 902 946 1353 1419 1476 1548 1763 1804 1849 1892 2706 2838 3526 3698 4059 4257 5289 5412 5547 5676 7052 7396 8118 8514 10578 11094 15867 16236 16641 17028 19393 20339 21156 22188 31734 33282 38786 40678 58179 61017 63468 66564 75809 77572 81356 116358 122034 151618 174537 183051 227427 232716 244068 303236 349074 366102 454854 682281 698148 732204 833899 909708 1364562 1667798 2501697 2729124 3335596 5003394 7505091 10006788 15010182 30020364