Search a number
-
+
68177400 = 23352199571
BaseRepresentation
bin1000001000001…
…00110111111000
311202021202210220
410010010313320
5114423134100
610433140040
71455332634
oct404046770
9152252726
1068177400
1135536765
121a9ba620
1311181075
1490a9dc4
155ebaaa0
hex4104df8

68177400 has 96 divisors (see below), whose sum is σ = 212784000. Its totient is φ = 18057600.

The previous prime is 68177399. The next prime is 68177411. The reversal of 68177400 is 477186.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119115 + ... + 119685.

It is an arithmetic number, because the mean of its divisors is an integer number (2216500).

Almost surely, 268177400 is an apocalyptic number.

68177400 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 68177400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106392000).

68177400 is an abundant number, since it is smaller than the sum of its proper divisors (144606600).

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

68177400 is a wasteful number, since it uses less digits than its factorization.

68177400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 68177400 is about 8256.9606999186. The cubic root of 68177400 is about 408.5201459053.

The spelling of 68177400 in words is "sixty-eight million, one hundred seventy-seven thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 150 199 200 300 398 571 597 600 796 995 1142 1194 1592 1713 1990 2284 2388 2855 2985 3426 3980 4568 4776 4975 5710 5970 6852 7960 8565 9950 11420 11940 13704 14275 14925 17130 19900 22840 23880 28550 29850 34260 39800 42825 57100 59700 68520 85650 113629 114200 119400 171300 227258 340887 342600 454516 568145 681774 909032 1136290 1363548 1704435 2272580 2727096 2840725 3408870 4545160 5681450 6817740 8522175 11362900 13635480 17044350 22725800 34088700 68177400