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248007228 = 223721979281
BaseRepresentation
bin11101100100001…
…00101000111100
3122021200001221220
432302010220330
51001442212403
640335353340
76101012100
oct1662045074
9567601856
10248007228
11117aa2557
126b082850
133c4c5651
1424d1b900
1516b8d953
hexec84a3c

248007228 has 144 divisors (see below), whose sum is σ = 720115200. Its totient is φ = 66044160.

The previous prime is 248007181. The next prime is 248007233. The reversal of 248007228 is 822700842.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 882448 + ... + 882728.

It is an arithmetic number, because the mean of its divisors is an integer number (5000800).

Almost surely, 2248007228 is an apocalyptic number.

248007228 is a gapful number since it is divisible by the number (28) 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 248007228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360057600).

248007228 is an abundant number, since it is smaller than the sum of its proper divisors (472107972).

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

248007228 is a wasteful number, since it uses less digits than its factorization.

248007228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 248007228 is about 15748.2452355810. The cubic root of 248007228 is about 628.2822341554.

The spelling of 248007228 in words is "two hundred forty-eight million, seven thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 19 21 28 38 42 49 57 76 79 84 98 114 133 147 158 196 228 237 266 281 294 316 399 474 532 553 562 588 798 843 931 948 1106 1124 1501 1596 1659 1686 1862 1967 2212 2793 3002 3318 3372 3724 3871 3934 4503 5339 5586 5901 6004 6636 7742 7868 9006 10507 10678 11172 11613 11802 13769 15484 16017 18012 21014 21356 22199 23226 23604 27538 31521 32034 37373 41307 42028 44398 46452 55076 63042 64068 66597 73549 74746 82614 88796 112119 126084 133194 147098 149492 155393 165228 220647 224238 261611 266388 294196 310786 421781 441294 448476 466179 523222 621572 784833 843562 882588 932358 1046444 1087751 1265343 1569666 1687124 1864716 2175502 2530686 2952467 3139332 3263253 4351004 5061372 5904934 6526506 8857401 11809868 13053012 17714802 20667269 35429604 41334538 62001807 82669076 124003614 248007228