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68112837100 = 225273112347167
BaseRepresentation
bin111111011011110101…
…110110100111101100
320111210220022122001101
4333123311312213230
52103443341241400
651142434252444
74630620364000
oct773365664754
9214726278041
1068112837100
1126982a14710
121124aa27124
136566489b09
143422130700
151b89adb56a
hexfdbd769ec

68112837100 has 576 divisors, whose sum is σ = 201587097600. Its totient is φ = 19755859200.

The previous prime is 68112837071. The next prime is 68112837101. The reversal of 68112837100 is 173821186.

It is a super-2 number, since 2×681128371002 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68112837100.

It is not an unprimeable number, because it can be changed into a prime (68112837101) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 407861217 + ... + 407861383.

It is an arithmetic number, because the mean of its divisors is an integer number (349977600).

Almost surely, 268112837100 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 68112837100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100793548800).

68112837100 is an abundant number, since it is smaller than the sum of its proper divisors (133474260500).

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

68112837100 is a wasteful number, since it uses less digits than its factorization.

68112837100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 68112837100 in words is "sixty-eight billion, one hundred twelve million, eight hundred thirty-seven thousand, one hundred".