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68934078 = 234425519
BaseRepresentation
bin1000001101111…
…01100110111110
311210201012210000
410012331212332
5120121342303
610501255130
71464633663
oct406754676
9153635700
1068934078
1135a03214
121b1044a6
13113875c5
149225a6a
1560b9da3
hex41bd9be

68934078 has 20 divisors (see below), whose sum is σ = 154463760. Its totient is φ = 22977972.

The previous prime is 68934037. The next prime is 68934097. The reversal of 68934078 is 87043986.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 212598 + ... + 212921.

It is an arithmetic number, because the mean of its divisors is an integer number (7723188).

Almost surely, 268934078 is an apocalyptic number.

68934078 is an abundant number, since it is smaller than the sum of its proper divisors (85529682).

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

68934078 is a wasteful number, since it uses less digits than its factorization.

68934078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425533 (or 425524 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 68934078 is about 8302.6548766042. The cubic root of 68934078 is about 410.0259313363.

The spelling of 68934078 in words is "sixty-eight million, nine hundred thirty-four thousand, seventy-eight".

Divisors: 1 2 3 6 9 18 27 54 81 162 425519 851038 1276557 2553114 3829671 7659342 11489013 22978026 34467039 68934078