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68258204 = 22723831277
BaseRepresentation
bin1000001000110…
…00100110011100
311202102212122122
410010120212130
5114433230304
610435002112
71456120340
oct404304634
9152385578
1068258204
1135591443
121aa39338
13111aba91
1490cb620
155ed49be
hex411899c

68258204 has 48 divisors (see below), whose sum is σ = 144281088. Its totient is φ = 27622848.

The previous prime is 68258173. The next prime is 68258209. The reversal of 68258204 is 40285286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68258209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52814 + ... + 54090.

It is an arithmetic number, because the mean of its divisors is an integer number (3005856).

Almost surely, 268258204 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 68258204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72140544).

68258204 is an abundant number, since it is smaller than the sum of its proper divisors (76022884).

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

68258204 is a wasteful number, since it uses less digits than its factorization.

68258204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 1392 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 68258204 is about 8261.8523346765. The cubic root of 68258204 is about 408.6814751691.

The spelling of 68258204 in words is "sixty-eight million, two hundred fifty-eight thousand, two hundred four".

Divisors: 1 2 4 7 14 23 28 46 83 92 161 166 322 332 581 644 1162 1277 1909 2324 2554 3818 5108 7636 8939 13363 17878 26726 29371 35756 53452 58742 105991 117484 205597 211982 411194 423964 741937 822388 1483874 2437793 2967748 4875586 9751172 17064551 34129102 68258204