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68251100 = 2252682511
BaseRepresentation
bin1000001000101…
…10110111011100
311202102111220112
410010112313130
5114433013400
610434505152
71456060541
oct404266734
9152374815
1068251100
1135587075
121aa351b8
13111a8788
1490c8bc8
155ed2835
hex4116ddc

68251100 has 18 divisors (see below), whose sum is σ = 148105104. Its totient is φ = 27300400.

The previous prime is 68251081. The next prime is 68251103. The reversal of 68251100 is 115286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68251103) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 341156 + ... + 341355.

Almost surely, 268251100 is an apocalyptic number.

It is an amenable number.

68251100 is an abundant number, since it is smaller than the sum of its proper divisors (79854004).

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

68251100 is a wasteful number, since it uses less digits than its factorization.

68251100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682525 (or 682518 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 68251100 is about 8261.4223956895. The cubic root of 68251100 is about 408.6672967809.

Adding to 68251100 its reverse (115286), we get a palindrome (68366386).

The spelling of 68251100 in words is "sixty-eight million, two hundred fifty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 682511 1365022 2730044 3412555 6825110 13650220 17062775 34125550 68251100