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248413440 = 2835115881
BaseRepresentation
bin11101100111001…
…11110100000000
3122022102201011210
432303213310000
51002043212230
640352210120
76104323302
oct1663476400
9568381153
10248413440
1111824a770
126b239940
133c608502
1424dc5972
1516c1deb0
hexece7d00

248413440 has 144 divisors (see below), whose sum is σ = 865642176. Its totient is φ = 60211200.

The previous prime is 248413393. The next prime is 248413453. The reversal of 248413440 is 44314842.

248413440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 248413398 and 248413407.

It is a congruent number.

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, 39300 + ... + 45180.

It is an arithmetic number, because the mean of its divisors is an integer number (6011404).

Almost surely, 2248413440 is an apocalyptic number.

248413440 is a gapful number since it is divisible by the number (20) 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 248413440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432821088).

248413440 is an abundant number, since it is smaller than the sum of its proper divisors (617228736).

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

248413440 is a wasteful number, since it uses less digits than its factorization.

248413440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5916 (or 5902 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 248413440 is about 15761.1370148222. The cubic root of 248413440 is about 628.6250690154.

The spelling of 248413440 in words is "two hundred forty-eight million, four hundred thirteen thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 64 66 80 88 96 110 120 128 132 160 165 176 192 220 240 256 264 320 330 352 384 440 480 528 640 660 704 768 880 960 1056 1280 1320 1408 1760 1920 2112 2640 2816 3520 3840 4224 5280 5881 7040 8448 10560 11762 14080 17643 21120 23524 29405 35286 42240 47048 58810 64691 70572 88215 94096 117620 129382 141144 176430 188192 194073 235240 258764 282288 323455 352860 376384 388146 470480 517528 564576 646910 705720 752768 776292 940960 970365 1035056 1129152 1293820 1411440 1505536 1552584 1881920 1940730 2070112 2258304 2587640 2822880 3105168 3763840 3881460 4140224 4516608 5175280 5645760 6210336 7527680 7762920 8280448 10350560 11291520 12420672 15525840 16560896 20701120 22583040 24841344 31051680 41402240 49682688 62103360 82804480 124206720 248413440