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30850248 = 233111389101
BaseRepresentation
bin111010110101…
…1110011001000
32011001100120210
41311223303020
530344201443
63021121120
7523136262
oct165536310
964040523
1030850248
1116461280
12a3b91a0
136511cb0
144150b32
152a95c33
hex1d6bcc8

30850248 has 128 divisors (see below), whose sum is σ = 92534400. Its totient is φ = 8448000.

The previous prime is 30850247. The next prime is 30850249. The reversal of 30850248 is 84205803.

It is an interprime number because it is at equal distance from previous prime (30850247) and next prime (30850249).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30850241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305398 + ... + 305498.

It is an arithmetic number, because the mean of its divisors is an integer number (722925).

Almost surely, 230850248 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 30850248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46267200).

30850248 is an abundant number, since it is smaller than the sum of its proper divisors (61684152).

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

30850248 is a wasteful number, since it uses less digits than its factorization.

30850248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 30850248 is about 5554.2999558900. The cubic root of 30850248 is about 313.6314119323.

The spelling of 30850248 in words is "thirty million, eight hundred fifty thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 11 12 13 22 24 26 33 39 44 52 66 78 88 89 101 104 132 143 156 178 202 264 267 286 303 312 356 404 429 534 572 606 712 808 858 979 1068 1111 1144 1157 1212 1313 1716 1958 2136 2222 2314 2424 2626 2937 3333 3432 3471 3916 3939 4444 4628 5252 5874 6666 6942 7832 7878 8888 8989 9256 10504 11748 12727 13332 13884 14443 15756 17978 23496 25454 26664 26967 27768 28886 31512 35956 38181 43329 50908 53934 57772 71912 76362 86658 98879 101816 107868 115544 116857 152724 173316 197758 215736 233714 296637 305448 346632 350571 395516 467428 593274 701142 791032 934856 1186548 1285427 1402284 2373096 2570854 2804568 3856281 5141708 7712562 10283416 15425124 30850248