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108400248 = 233311431061
BaseRepresentation
bin1100111011000…
…00111001111000
321112222022012000
412131200321320
5210222301443
614431221000
72454246465
oct635407170
9245868160
10108400248
1156209790
1230377760
13195c5178
141057a66c
1597b38d3
hex6760e78

108400248 has 128 divisors (see below), whose sum is σ = 336441600. Its totient is φ = 32054400.

The previous prime is 108400247. The next prime is 108400267. The reversal of 108400248 is 842004801.

108400248 is a `hidden beast` number, since 10 + 8 + 400 + 248 = 666.

It is a super-2 number, since 2×1084002482 = 23501227532923008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108400247) 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, 101638 + ... + 102698.

It is an arithmetic number, because the mean of its divisors is an integer number (2628450).

Almost surely, 2108400248 is an apocalyptic number.

108400248 is a gapful number since it is divisible by the number (18) 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 108400248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168220800).

108400248 is an abundant number, since it is smaller than the sum of its proper divisors (228041352).

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

108400248 is a wasteful number, since it uses less digits than its factorization.

108400248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 108400248 is about 10411.5439777201. The cubic root of 108400248 is about 476.8078811776.

The spelling of 108400248 in words is "one hundred eight million, four hundred thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 27 33 36 43 44 54 66 72 86 88 99 108 129 132 172 198 216 258 264 297 344 387 396 473 516 594 774 792 946 1032 1061 1161 1188 1419 1548 1892 2122 2322 2376 2838 3096 3183 3784 4244 4257 4644 5676 6366 8488 8514 9288 9549 11352 11671 12732 12771 17028 19098 23342 25464 25542 28647 34056 35013 38196 45623 46684 51084 57294 70026 76392 91246 93368 102168 105039 114588 136869 140052 182492 210078 229176 273738 280104 315117 364984 410607 420156 501853 547476 630234 821214 840312 1003706 1094952 1231821 1260468 1505559 1642428 2007412 2463642 2520936 3011118 3284856 4014824 4516677 4927284 6022236 9033354 9854568 12044472 13550031 18066708 27100062 36133416 54200124 108400248