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68875900 = 225241107157
BaseRepresentation
bin1000001101011…
…11011001111100
311210121020222021
410012233121330
5120113012100
610500125524
71464302242
oct406573174
9153536867
1068875900
1135973535
121b0968a4
1311366c92
14920c792
1560a7a1a
hex41af67c

68875900 has 72 divisors (see below), whose sum is σ = 155521296. Its totient is φ = 26457600.

The previous prime is 68875883. The next prime is 68875903. The reversal of 68875900 is 957886.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68875903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 438622 + ... + 438778.

It is an arithmetic number, because the mean of its divisors is an integer number (2160018).

Almost surely, 268875900 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 68875900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77760648).

68875900 is an abundant number, since it is smaller than the sum of its proper divisors (86645396).

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

68875900 is a wasteful number, since it uses less digits than its factorization.

68875900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 68875900 is about 8299.1505589428. The cubic root of 68875900 is about 409.9105495916.

The spelling of 68875900 in words is "sixty-eight million, eight hundred seventy-five thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 41 50 82 100 107 157 164 205 214 314 410 428 535 628 785 820 1025 1070 1570 2050 2140 2675 3140 3925 4100 4387 5350 6437 7850 8774 10700 12874 15700 16799 17548 21935 25748 32185 33598 43870 64370 67196 83995 87740 109675 128740 160925 167990 219350 321850 335980 419975 438700 643700 688759 839950 1377518 1679900 2755036 3443795 6887590 13775180 17218975 34437950 68875900