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109868512 = 25131092423
BaseRepresentation
bin1101000110001…
…11010111100000
321122201220021011
412203013113200
5211111243022
614522510304
72502603235
oct643072740
9248656234
10109868512
1157021926
1230965394
13199ba570
141083d78c
1599a3977
hex68c75e0

109868512 has 48 divisors (see below), whose sum is σ = 235176480. Its totient is φ = 50222592.

The previous prime is 109868509. The next prime is 109868527. The reversal of 109868512 is 215868901.

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 7 ways as a sum of consecutive naturals, for example, 44133 + ... + 46555.

It is an arithmetic number, because the mean of its divisors is an integer number (4899510).

Almost surely, 2109868512 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 109868512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117588240).

109868512 is an abundant number, since it is smaller than the sum of its proper divisors (125307968).

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

109868512 is a wasteful number, since it uses less digits than its factorization.

109868512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555 (or 2547 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 109868512 is about 10481.8181628952. The cubic root of 109868512 is about 478.9509961883.

The spelling of 109868512 in words is "one hundred nine million, eight hundred sixty-eight thousand, five hundred twelve".

Divisors: 1 2 4 8 13 16 26 32 52 104 109 208 218 416 436 872 1417 1744 2423 2834 3488 4846 5668 9692 11336 19384 22672 31499 38768 45344 62998 77536 125996 251992 264107 503984 528214 1007968 1056428 2112856 3433391 4225712 6866782 8451424 13733564 27467128 54934256 109868512