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30012402 = 2372313789
BaseRepresentation
bin111001001111…
…1001111110010
32002110210021110
41302133033302
530140344102
62551134150
7513046500
oct162371762
962423243
1030012402
1115a39842
12a074356
1362aa824
143db3670
15297c86c
hex1c9f3f2

30012402 has 96 divisors (see below), whose sum is σ = 74856960. Its totient is φ = 7983360.

The previous prime is 30012397. The next prime is 30012431. The reversal of 30012402 is 20421003.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 337174 + ... + 337262.

It is an arithmetic number, because the mean of its divisors is an integer number (779760).

Almost surely, 230012402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30012402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37428480).

30012402 is an abundant number, since it is smaller than the sum of its proper divisors (44844558).

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

30012402 is a wasteful number, since it uses less digits than its factorization.

30012402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 30012402 is about 5478.3576005953. The cubic root of 30012402 is about 310.7660623604.

Adding to 30012402 its reverse (20421003), we get a palindrome (50433405).

The spelling of 30012402 in words is "thirty million, twelve thousand, four hundred two".

Divisors: 1 2 3 6 7 14 21 31 37 42 49 62 74 89 93 98 111 147 178 186 217 222 259 267 294 434 518 534 623 651 777 1147 1246 1302 1519 1554 1813 1869 2294 2759 3038 3293 3441 3626 3738 4361 4557 5439 5518 6586 6882 8029 8277 8722 9114 9879 10878 13083 16058 16554 19313 19758 23051 24087 26166 38626 46102 48174 56203 57939 69153 102083 112406 115878 135191 138306 161357 168609 204166 270382 306249 322714 337218 405573 484071 612498 714581 811146 968142 1429162 2143743 4287486 5002067 10004134 15006201 30012402