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67956196290 = 235192313139569
BaseRepresentation
bin111111010010100000…
…010100001111000010
320111101222120110020220
4333102200110033002
52103133241240130
651115121043510
74624006065153
oct772240241702
9214358513226
1067956196290
11269025570a4
1211206486596
13653cba4348
1434093d792a
151b7ae99410
hexfd28143c2

67956196290 has 128 divisors (see below), whose sum is σ = 180515174400. Its totient is φ = 16295685120.

The previous prime is 67956196289. The next prime is 67956196331. The reversal of 67956196290 is 9269165976.

It is a super-2 number, since 2×679561962902 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1697626 + ... + 1737194.

It is an arithmetic number, because the mean of its divisors is an integer number (1410274800).

Almost surely, 267956196290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67956196290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90257587200).

67956196290 is an abundant number, since it is smaller than the sum of its proper divisors (112558978110).

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

67956196290 is a wasteful number, since it uses less digits than its factorization.

67956196290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39752.

The product of its (nonzero) digits is 11022480, while the sum is 60.

The spelling of 67956196290 in words is "sixty-seven billion, nine hundred fifty-six million, one hundred ninety-six thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 19 23 30 38 46 57 69 95 114 115 131 138 190 230 262 285 345 393 437 570 655 690 786 874 1310 1311 1965 2185 2489 2622 3013 3930 4370 4978 6026 6555 7467 9039 12445 13110 14934 15065 18078 24890 30130 37335 39569 45195 57247 74670 79138 90390 114494 118707 171741 197845 237414 286235 343482 395690 572470 593535 751811 858705 910087 1187070 1503622 1717410 1820174 2255433 2730261 3759055 4510866 4550435 5183539 5460522 7518110 9100870 10367078 11277165 13651305 15550617 17291653 22554330 25917695 27302610 31101234 34583306 51835390 51874959 77753085 86458265 98487241 103749918 119221397 155506170 172916530 196974482 238442794 259374795 295461723 357664191 492436205 518749590 590923446 596106985 715328382 984872410 1192213970 1477308615 1788320955 2265206543 2954617230 3576641910 4530413086 6795619629 11326032715 13591239258 22652065430 33978098145 67956196290