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68078358 = 2325416991
BaseRepresentation
bin1000000111011…
…00101100010110
311202002201221200
410003230230112
5114412001413
610431053330
71454441115
oct403545426
9152081850
1068078358
1135479307
121a971246
1311147c6a
149081c7c
155e9b573
hex40ecb16

68078358 has 24 divisors (see below), whose sum is σ = 147796896. Its totient is φ = 22647600.

The previous prime is 68078357. The next prime is 68078359. The reversal of 68078358 is 85387086.

It is an interprime number because it is at equal distance from previous prime (68078357) and next prime (68078359).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68078357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6243 + ... + 13233.

It is an arithmetic number, because the mean of its divisors is an integer number (6158204).

Almost surely, 268078358 is an apocalyptic number.

68078358 is an abundant number, since it is smaller than the sum of its proper divisors (79718538).

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

68078358 is a wasteful number, since it uses less digits than its factorization.

68078358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7540 (or 7537 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 68078358 is about 8250.9610349341. The cubic root of 68078358 is about 408.3222295838.

The spelling of 68078358 in words is "sixty-eight million, seventy-eight thousand, three hundred fifty-eight".

Divisors: 1 2 3 6 9 18 541 1082 1623 3246 4869 6991 9738 13982 20973 41946 62919 125838 3782131 7564262 11346393 22692786 34039179 68078358