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68246190 = 23253161401
BaseRepresentation
bin1000001000101…
…01101010101110
311202102021011200
410010111222232
5114432334230
610434430330
71456040325
oct404255256
9152367150
1068246190
1135583411
121aa323a6
13111a647c
1490c70bc
155ed1160
hex4115aae

68246190 has 96 divisors (see below), whose sum is σ = 186630912. Its totient is φ = 17280000.

The previous prime is 68246089. The next prime is 68246197. The reversal of 68246190 is 9164286.

It is a super-2 number, since 2×682461902 = 9315084899032200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68246197) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 169990 + ... + 170390.

It is an arithmetic number, because the mean of its divisors is an integer number (1944072).

Almost surely, 268246190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68246190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93315456).

68246190 is an abundant number, since it is smaller than the sum of its proper divisors (118384722).

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

68246190 is a wasteful number, since it uses less digits than its factorization.

68246190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 68246190 is about 8261.1252260210. The cubic root of 68246190 is about 408.6574966725.

The spelling of 68246190 in words is "sixty-eight million, two hundred forty-six thousand, one hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 31 45 61 62 90 93 122 155 183 186 279 305 310 366 401 465 549 558 610 802 915 930 1098 1203 1395 1830 1891 2005 2406 2745 2790 3609 3782 4010 5490 5673 6015 7218 9455 11346 12030 12431 17019 18045 18910 24461 24862 28365 34038 36090 37293 48922 56730 62155 73383 74586 85095 111879 122305 124310 146766 170190 186465 220149 223758 244610 366915 372930 440298 559395 733830 758291 1100745 1118790 1516582 2201490 2274873 3791455 4549746 6824619 7582910 11374365 13649238 22748730 34123095 68246190