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68364888 = 23317198819
BaseRepresentation
bin1000001001100…
…10101001011000
311202122021222220
410010302221120
5120000134023
610441144040
71460043354
oct404625130
9152567886
1068364888
1135654609
121aa8b020
13112184c7
149118464
1560063e3
hex4132a58

68364888 has 64 divisors (see below), whose sum is σ = 190512000. Its totient is φ = 20316672.

The previous prime is 68364853. The next prime is 68364949. The reversal of 68364888 is 88846386.

It is a super-2 number, since 2×683648882 = 9347515822505088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 68364888.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3343 + ... + 12161.

It is an arithmetic number, because the mean of its divisors is an integer number (2976750).

Almost surely, 268364888 is an apocalyptic number.

68364888 is a gapful number since it is divisible by the number (68) 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 68364888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95256000).

68364888 is an abundant number, since it is smaller than the sum of its proper divisors (122147112).

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

68364888 is a wasteful number, since it uses less digits than its factorization.

68364888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8864 (or 8860 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The square root of 68364888 is about 8268.3062352576. The cubic root of 68364888 is about 408.8942802578.

The spelling of 68364888 in words is "sixty-eight million, three hundred sixty-four thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 17 19 24 34 38 51 57 68 76 102 114 136 152 204 228 323 408 456 646 969 1292 1938 2584 3876 7752 8819 17638 26457 35276 52914 70552 105828 149923 167561 211656 299846 335122 449769 502683 599692 670244 899538 1005366 1199384 1340488 1799076 2010732 2848537 3598152 4021464 5697074 8545611 11394148 17091222 22788296 34182444 68364888