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68069650 = 25211235381
BaseRepresentation
bin1000000111010…
…10100100010010
311202002022000011
410003222210102
5114411212100
610430545134
71454403535
oct403524422
9152068004
1068069650
1135472810
121a9681aa
1311143ccc
14907ca1c
155e98bba
hex40ea912

68069650 has 48 divisors (see below), whose sum is σ = 144151488. Its totient is φ = 23672000.

The previous prime is 68069629. The next prime is 68069669. The reversal of 68069650 is 5696086.

It is a super-2 number, since 2×680696502 = 9266954502245000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9960 + ... + 15340.

It is an arithmetic number, because the mean of its divisors is an integer number (3003156).

Almost surely, 268069650 is an apocalyptic number.

68069650 is an abundant number, since it is smaller than the sum of its proper divisors (76081838).

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

68069650 is a wasteful number, since it uses less digits than its factorization.

68069650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5427 (or 5422 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 68069650 is about 8250.4333219535. The cubic root of 68069650 is about 408.3048191482.

The spelling of 68069650 in words is "sixty-eight million, sixty-nine thousand, six hundred fifty".

Divisors: 1 2 5 10 11 22 23 25 46 50 55 110 115 230 253 275 506 550 575 1150 1265 2530 5381 6325 10762 12650 26905 53810 59191 118382 123763 134525 247526 269050 295955 591910 618815 1237630 1361393 1479775 2722786 2959550 3094075 6188150 6806965 13613930 34034825 68069650