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68113500 = 22353713499
BaseRepresentation
bin1000000111101…
…01010001011100
311202011112011020
410003311101130
5114414113000
610431524140
71454645430
oct403652134
9152145136
1068113500
11354a2754
121a989650
131115ac60
1490909c0
155ea6ba0
hex40f545c

68113500 has 192 divisors, whose sum is σ = 244608000. Its totient is φ = 14342400.

The previous prime is 68113483. The next prime is 68113517. The reversal of 68113500 is 531186.

It is an interprime number because it is at equal distance from previous prime (68113483) and next prime (68113517).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 136251 + ... + 136749.

It is an arithmetic number, because the mean of its divisors is an integer number (1274000).

Almost surely, 268113500 is an apocalyptic number.

68113500 is a gapful number since it is divisible by the number (60) 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 68113500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122304000).

68113500 is an abundant number, since it is smaller than the sum of its proper divisors (176494500).

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

68113500 is a wasteful number, since it uses less digits than its factorization.

68113500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 68113500 is about 8253.0903302945. The cubic root of 68113500 is about 408.3924760463.

Adding to 68113500 its reverse (531186), we get a palindrome (68644686).

The spelling of 68113500 in words is "sixty-eight million, one hundred thirteen thousand, five hundred".