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68705004 = 22337271571
BaseRepresentation
bin1000001100001…
…01101011101100
311210021120112210
410012011223230
5120042030004
610452330420
71462661064
oct406055354
9153246483
1068705004
11358670a5
121b013a10
1311307264
1491a63a4
156072089
hex4185aec

68705004 has 48 divisors (see below), whose sum is σ = 165541376. Its totient is φ = 22161600.

The previous prime is 68704997. The next prime is 68705009. The reversal of 68705004 is 40050786.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68705009) 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, 120039 + ... + 120609.

Almost surely, 268705004 is an apocalyptic number.

It is an amenable number.

68705004 is an abundant number, since it is smaller than the sum of its proper divisors (96836372).

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

68705004 is a wasteful number, since it uses less digits than its factorization.

68705004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 68705004 is about 8288.8481708860. The cubic root of 68705004 is about 409.5712432382.

The spelling of 68705004 in words is "sixty-eight million, seven hundred five thousand, four".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 271 444 542 571 813 1084 1142 1626 1713 2284 3252 3426 6852 10027 20054 21127 30081 40108 42254 60162 63381 84508 120324 126762 154741 253524 309482 464223 618964 928446 1856892 5725417 11450834 17176251 22901668 34352502 68705004